Home / 87,409.50-131,078.09-27,417.96

Finding the Fourth Proportional to 87,409.50, 131,078.09 and 27,417.96

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Solution

The fourth proportional to 87,409.50, 131,078.09 and 27,417.96 is: 41,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,409.50 : 131,078.09 = 27,417.96 : x
  2. Step 2: Convert to fraction form
    87,409.50/131,078.09 = 27,417.96/x
  3. Step 3: Cross multiply
    87,409.50x = 131,078.09 × 27,417.96
  4. Step 4: Simplify right side
    87,409.50x = 3,593,893,691.41
  5. Step 5: Solve for x
    x = 3,593,893,691.41/87,409.50
  6. Step 6: Final answer
    x = 41,115.60

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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.