Home / 87,831.20-131,767.79-28,666.97

Finding the Fourth Proportional to 87,831.20, 131,767.79 and 28,666.97

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Solution

The fourth proportional to 87,831.20, 131,767.79 and 28,666.97 is: 43,007.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,831.20 : 131,767.79 = 28,666.97 : x
  2. Step 2: Convert to fraction form
    87,831.20/131,767.79 = 28,666.97/x
  3. Step 3: Cross multiply
    87,831.20x = 131,767.79 × 28,666.97
  4. Step 4: Simplify right side
    87,831.20x = 3,777,383,468.98
  5. Step 5: Solve for x
    x = 3,777,383,468.98/87,831.20
  6. Step 6: Final answer
    x = 43,007.31

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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.