Question

In a proportion , the 1st,3st and 4th terms are 51 , 81 and 108 respectively. Find the 2nd term​

Answer 1

Answer:

Second term = 68

Step-by-step explanation:

First term × fourth term = Second term × Third term

51 × 108 = Second term × 81

5508 =  Second term × 81

Second term = 5508/ 81

Second term = 68

Answer 2

$\large{\mathfrak{\fcolorbox{aqua}{purple}{\blue{\dag{Answer}}}}}$

1st term = 51

3nd term = 81

4th term = 108

$\fbox\green{Product of means = Product of extremes}$

$= 51 × 108 = x × 81$

$= \frac{51 \times 108}{81} = \frac{5508}{81}$

$= \frac{5508}{81} = 68$

Hence, the second term is 68.

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$\fbox\blue{Sarfaraz:)}$