First convert all the units into inches.
2 feet = 24 inches
Let x be the width of the actual desk
5 : 24 :: 115 : x
Remember this: Product of means is equal to the product of extremes.
5x = 115 × 24
5x = 2760
∴ x = 2760 ÷ 5
x = 552 inches
Then convert 552 inches back to foot.
Final answer = 46 foot
