Home / 87,329.15-131,085.34-77,397.44

Finding the Fourth Proportional to 87,329.15, 131,085.34 and 77,397.44

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Solution

The fourth proportional to 87,329.15, 131,085.34 and 77,397.44 is: 116,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,329.15 : 131,085.34 = 77,397.44 : x
  2. Step 2: Convert to fraction form
    87,329.15/131,085.34 = 77,397.44/x
  3. Step 3: Cross multiply
    87,329.15x = 131,085.34 × 77,397.44
  4. Step 4: Simplify right side
    87,329.15x = 10,145,669,737.53
  5. Step 5: Solve for x
    x = 10,145,669,737.53/87,329.15
  6. Step 6: Final answer
    x = 116,177.36

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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.