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Finding the Fourth Proportional to 87,363.44, 130,926.92 and 39,920.12

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Solution

The fourth proportional to 87,363.44, 130,926.92 and 39,920.12 is: 59,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,363.44 : 130,926.92 = 39,920.12 : x
  2. Step 2: Convert to fraction form
    87,363.44/130,926.92 = 39,920.12/x
  3. Step 3: Cross multiply
    87,363.44x = 130,926.92 × 39,920.12
  4. Step 4: Simplify right side
    87,363.44x = 5,226,617,503.40
  5. Step 5: Solve for x
    x = 5,226,617,503.40/87,363.44
  6. Step 6: Final answer
    x = 59,826.14

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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.