The first, second and third terms of the proportion are 56, 16, 49. Find the fourth term. Choose the most appropriate option.
A) 10  B) 14  C) 40  D) 50  E) 60
Explanation :   Let the fourth term be x.   Thus 56, 16, 49, x are in proportion.   Product of extreme terms = 56 x   Product of mean terms = 16 X 49   Since, the numbers make up a proportion   Therefore, 56 x = 16 49   or, x = (16 49)/56   or, x = 14   Therefore, the fourth term of the proportion is 14.   Answer : 14
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The first, second and third terms of the proportion are 56, 16, 49. Find the fourth term.