Finding the Fourth Proportional to 67.71, 101.50 and 27.15

Step by Step Solution

1. Step 1: Write the proportion equation
   67.71 : 101.50 = 27.15 : x
2. Step 2: Convert to fraction form
   67.71/101.50 = 27.15/x
3. Step 3: Cross multiply
   67.71x = 101.50 × 27.15
4. Step 4: Simplify right side
   67.71x = 2,755.59
5. Step 5: Solve for x
   x = 2,755.59/67.71
6. Step 6: Final answer
   x = 40.70