Home / 87,725.70-131,587.33-21,165.27

Finding the Fourth Proportional to 87,725.70, 131,587.33 and 21,165.27

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Solution

The fourth proportional to 87,725.70, 131,587.33 and 21,165.27 is: 31,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,725.70 : 131,587.33 = 21,165.27 : x
  2. Step 2: Convert to fraction form
    87,725.70/131,587.33 = 21,165.27/x
  3. Step 3: Cross multiply
    87,725.70x = 131,587.33 × 21,165.27
  4. Step 4: Simplify right side
    87,725.70x = 2,785,081,723.45
  5. Step 5: Solve for x
    x = 2,785,081,723.45/87,725.70
  6. Step 6: Final answer
    x = 31,747.61

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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.