Home / 87,731.18-131,614.54-28,550.96

Finding the Fourth Proportional to 87,731.18, 131,614.54 and 28,550.96

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Solution

The fourth proportional to 87,731.18, 131,614.54 and 28,550.96 is: 42,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,731.18 : 131,614.54 = 28,550.96 : x
  2. Step 2: Convert to fraction form
    87,731.18/131,614.54 = 28,550.96/x
  3. Step 3: Cross multiply
    87,731.18x = 131,614.54 × 28,550.96
  4. Step 4: Simplify right side
    87,731.18x = 3,757,721,231.06
  5. Step 5: Solve for x
    x = 3,757,721,231.06/87,731.18
  6. Step 6: Final answer
    x = 42,832.22

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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.