Home / 87,684.15-131,560.96-45,590.78

Finding the Fourth Proportional to 87,684.15, 131,560.96 and 45,590.78

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Solution

The fourth proportional to 87,684.15, 131,560.96 and 45,590.78 is: 68,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.15 : 131,560.96 = 45,590.78 : x
  2. Step 2: Convert to fraction form
    87,684.15/131,560.96 = 45,590.78/x
  3. Step 3: Cross multiply
    87,684.15x = 131,560.96 × 45,590.78
  4. Step 4: Simplify right side
    87,684.15x = 5,997,966,012.17
  5. Step 5: Solve for x
    x = 5,997,966,012.17/87,684.15
  6. Step 6: Final answer
    x = 68,404.22

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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.