Home / 87,330.07-131,020.62-28,164.43

Finding the Fourth Proportional to 87,330.07, 131,020.62 and 28,164.43

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Solution

The fourth proportional to 87,330.07, 131,020.62 and 28,164.43 is: 42,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.07 : 131,020.62 = 28,164.43 : x
  2. Step 2: Convert to fraction form
    87,330.07/131,020.62 = 28,164.43/x
  3. Step 3: Cross multiply
    87,330.07x = 131,020.62 × 28,164.43
  4. Step 4: Simplify right side
    87,330.07x = 3,690,121,080.55
  5. Step 5: Solve for x
    x = 3,690,121,080.55/87,330.07
  6. Step 6: Final answer
    x = 42,254.87

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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.