Home / 87,651.82-131,416.17-30,711.78

Finding the Fourth Proportional to 87,651.82, 131,416.17 and 30,711.78

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Solution

The fourth proportional to 87,651.82, 131,416.17 and 30,711.78 is: 46,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651.82 : 131,416.17 = 30,711.78 : x
  2. Step 2: Convert to fraction form
    87,651.82/131,416.17 = 30,711.78/x
  3. Step 3: Cross multiply
    87,651.82x = 131,416.17 × 30,711.78
  4. Step 4: Simplify right side
    87,651.82x = 4,036,024,501.48
  5. Step 5: Solve for x
    x = 4,036,024,501.48/87,651.82
  6. Step 6: Final answer
    x = 46,046.10

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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.