Home / 87,932.83-131,898.09-21,372.76

Finding the Fourth Proportional to 87,932.83, 131,898.09 and 21,372.76

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Solution

The fourth proportional to 87,932.83, 131,898.09 and 21,372.76 is: 32,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.83 : 131,898.09 = 21,372.76 : x
  2. Step 2: Convert to fraction form
    87,932.83/131,898.09 = 21,372.76/x
  3. Step 3: Cross multiply
    87,932.83x = 131,898.09 × 21,372.76
  4. Step 4: Simplify right side
    87,932.83x = 2,819,026,115.16
  5. Step 5: Solve for x
    x = 2,819,026,115.16/87,932.83
  6. Step 6: Final answer
    x = 32,058.86

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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.