Home / 87,876.81-131,801.45-31,708.17

Finding the Fourth Proportional to 87,876.81, 131,801.45 and 31,708.17

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Solution

The fourth proportional to 87,876.81, 131,801.45 and 31,708.17 is: 47,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,876.81 : 131,801.45 = 31,708.17 : x
  2. Step 2: Convert to fraction form
    87,876.81/131,801.45 = 31,708.17/x
  3. Step 3: Cross multiply
    87,876.81x = 131,801.45 × 31,708.17
  4. Step 4: Simplify right side
    87,876.81x = 4,179,182,624.31
  5. Step 5: Solve for x
    x = 4,179,182,624.31/87,876.81
  6. Step 6: Final answer
    x = 47,557.29

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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.