The phrase "astonishing proportion" is correct and usable in written English.
It can be used to describe a size, amount, or degree that is surprising or remarkable in comparison to something else.
Example: "The study revealed an astonishing proportion of participants who reported experiencing anxiety during the pandemic."
Alternatives: "remarkable ratio" or "surprising amount".
Oxford University graduates in philosophy, politics and economics make up an astonishing proportion of Britain's elite.
An astonishing proportion of the music in this new David Simon television series, broadcast Sunday nights on HBO, was recorded live on location in New Orleans.
Much later, the Trinidad years came back to life in a series of Human Biology lectures that some four thousand Stanford students heard, and an astonishing proportion actually remember.
Not only have its four eclectic offerings been critical and popular hits, but next week an astonishing proportion -- three of them -- will be playing simultaneously: "As Bees in Honey Drown" at the Lucille Lortel Theater; "June Moon" at the Variety Arts, and "Uncle Tom's Cabin," its most recent production, which resumes at the Greenwich House on Monday for a weeklong extension.
His cause dates to the late nineteen-nineties, when he found that sixty per cent of the value of the country's currency supply was in hundred-dollar bills — an astonishing proportion, considering how rarely C-notes show up in ordinary life.
But one-fifth of websites is an astonishing proportion - much, much more than most authoritarian regimes ever manage.
And Robert McCrum, William Cran and Robert MacNeil leave us in no doubt that it is a success story of astonishing proportions.
A great Valkyrie woman of astonishing proportions, Parietti, in white patent-leather stilettos, stands almost six feet tall.
"The affair of the presidential ears reaches astonishing proportions without gaining in clarity," Le Monde declares in a front-page article on Friday.
The image of the W.W.E. is largely that of well-built men of cartoonish and astonishing proportions, meeting in matches that serve as wildly popular soap operas starring human action figures.
However, performed by Reggie N Bollie, who until that point had avoided ballads as studiously as Simon Cowell avoids his own shirt buttons, Forever Young transformed into a car crash of astonishing proportions.
