Home / 87,687.72-131,557.50-25,358.76

Finding the Fourth Proportional to 87,687.72, 131,557.50 and 25,358.76

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Solution

The fourth proportional to 87,687.72, 131,557.50 and 25,358.76 is: 38,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687.72 : 131,557.50 = 25,358.76 : x
  2. Step 2: Convert to fraction form
    87,687.72/131,557.50 = 25,358.76/x
  3. Step 3: Cross multiply
    87,687.72x = 131,557.50 × 25,358.76
  4. Step 4: Simplify right side
    87,687.72x = 3,336,135,068.70
  5. Step 5: Solve for x
    x = 3,336,135,068.70/87,687.72
  6. Step 6: Final answer
    x = 38,045.64

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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.