Home / 87,929.38-131,892.18-21,369.88

Finding the Fourth Proportional to 87,929.38, 131,892.18 and 21,369.88

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Solution

The fourth proportional to 87,929.38, 131,892.18 and 21,369.88 is: 32,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,929.38 : 131,892.18 = 21,369.88 : x
  2. Step 2: Convert to fraction form
    87,929.38/131,892.18 = 21,369.88/x
  3. Step 3: Cross multiply
    87,929.38x = 131,892.18 × 21,369.88
  4. Step 4: Simplify right side
    87,929.38x = 2,818,520,059.54
  5. Step 5: Solve for x
    x = 2,818,520,059.54/87,929.38
  6. Step 6: Final answer
    x = 32,054.36

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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.