The phrase "overwhelming proportion" is a perfectly valid phrase to use in written English.
You can use it to describe an amount or percentage of something that is far larger than other amounts or percentages of something else. For example, "The overwhelming proportion of our income is spent on rent each month."
The combined targeting of Gingrich comprises an overwhelming proportion of the advertising in Florida".
That year his resort saw nearly 80,000 visits, an overwhelming proportion of them snowboarders.
But they shouldn't necessarily be worried about the apparently overwhelming proportion of their staff about to do them over.
The United States relies on the route for an overwhelming proportion of its supplies for the war in Afghanistan.
And even though an overwhelming proportion of Ukip supporters voted Tory in 2010, many had traditionally backed Labour before that.
To reverse this debacle, I suggest two tax increases that would be supported by an overwhelming proportion of the voters.
Among the general public, 68% considered US science education average or below average, and an overwhelming proportion of scientists, 84%, agreed with them.
"The independent SME Finance Monitor found the overwhelming proportion of businesses were not seeking any external finance but, where they approached their bank, were successful in getting credit.
The Scottish Tories chief whip at Holyrood, John Lamont, said the SNP's refusal to acknowledge the importance of the Weirs' donations showed they were 'clearly embarrassed that such an overwhelming proportion of its funding is coming from one source.
In the city of Cleveland the overwhelming proportion of large appropriations for voucher money must be spent on religious schools if it is to be spent at all, and will be spent in amounts that cover almost all of tuition.
However, in South Africa, to where the overwhelming proportion fled, only about 10% were recognised as refugees and up to 300,000 people a year were deported back to Zimbabwe.
