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Finding the Fourth Proportional to 87,338.60, 130,983.90 and 24,143.72

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Solution

The fourth proportional to 87,338.60, 130,983.90 and 24,143.72 is: 36,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,338.60 : 130,983.90 = 24,143.72 : x
  2. Step 2: Convert to fraction form
    87,338.60/130,983.90 = 24,143.72/x
  3. Step 3: Cross multiply
    87,338.60x = 130,983.90 × 24,143.72
  4. Step 4: Simplify right side
    87,338.60x = 3,162,438,606.11
  5. Step 5: Solve for x
    x = 3,162,438,606.11/87,338.60
  6. Step 6: Final answer
    x = 36,208.95

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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.