Home / 87,916.59-131,891.22-28,755.41

Finding the Fourth Proportional to 87,916.59, 131,891.22 and 28,755.41

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Solution

The fourth proportional to 87,916.59, 131,891.22 and 28,755.41 is: 43,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916.59 : 131,891.22 = 28,755.41 : x
  2. Step 2: Convert to fraction form
    87,916.59/131,891.22 = 28,755.41/x
  3. Step 3: Cross multiply
    87,916.59x = 131,891.22 × 28,755.41
  4. Step 4: Simplify right side
    87,916.59x = 3,792,585,447.04
  5. Step 5: Solve for x
    x = 3,792,585,447.04/87,916.59
  6. Step 6: Final answer
    x = 43,138.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.