Home / 87,689.04-131,475.76-31,500.96

Finding the Fourth Proportional to 87,689.04, 131,475.76 and 31,500.96

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Solution

The fourth proportional to 87,689.04, 131,475.76 and 31,500.96 is: 47,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689.04 : 131,475.76 = 31,500.96 : x
  2. Step 2: Convert to fraction form
    87,689.04/131,475.76 = 31,500.96/x
  3. Step 3: Cross multiply
    87,689.04x = 131,475.76 × 31,500.96
  4. Step 4: Simplify right side
    87,689.04x = 4,141,612,656.73
  5. Step 5: Solve for x
    x = 4,141,612,656.73/87,689.04
  6. Step 6: Final answer
    x = 47,230.68

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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.