Home / 87,631.45-131,391.13-52,083.29

Finding the Fourth Proportional to 87,631.45, 131,391.13 and 52,083.29

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Solution

The fourth proportional to 87,631.45, 131,391.13 and 52,083.29 is: 78,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631.45 : 131,391.13 = 52,083.29 : x
  2. Step 2: Convert to fraction form
    87,631.45/131,391.13 = 52,083.29/x
  3. Step 3: Cross multiply
    87,631.45x = 131,391.13 × 52,083.29
  4. Step 4: Simplify right side
    87,631.45x = 6,843,281,800.47
  5. Step 5: Solve for x
    x = 6,843,281,800.47/87,631.45
  6. Step 6: Final answer
    x = 78,091.62

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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.