Home / 87,727.77-131,590.42-21,167.34

Finding the Fourth Proportional to 87,727.77, 131,590.42 and 21,167.34

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Solution

The fourth proportional to 87,727.77, 131,590.42 and 21,167.34 is: 31,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727.77 : 131,590.42 = 21,167.34 : x
  2. Step 2: Convert to fraction form
    87,727.77/131,590.42 = 21,167.34/x
  3. Step 3: Cross multiply
    87,727.77x = 131,590.42 × 21,167.34
  4. Step 4: Simplify right side
    87,727.77x = 2,785,419,160.88
  5. Step 5: Solve for x
    x = 2,785,419,160.88/87,727.77
  6. Step 6: Final answer
    x = 31,750.71

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1.5x scale

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.