Home / 87,257.35-131,082.85-52,221.61

Finding the Fourth Proportional to 87,257.35, 131,082.85 and 52,221.61

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Solution

The fourth proportional to 87,257.35, 131,082.85 and 52,221.61 is: 78,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,257.35 : 131,082.85 = 52,221.61 : x
  2. Step 2: Convert to fraction form
    87,257.35/131,082.85 = 52,221.61/x
  3. Step 3: Cross multiply
    87,257.35x = 131,082.85 × 52,221.61
  4. Step 4: Simplify right side
    87,257.35x = 6,845,356,814.97
  5. Step 5: Solve for x
    x = 6,845,356,814.97/87,257.35
  6. Step 6: Final answer
    x = 78,450.21

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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.