Home / 87,874.40-131,718.54-28,694.18

Finding the Fourth Proportional to 87,874.40, 131,718.54 and 28,694.18

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Solution

The fourth proportional to 87,874.40, 131,718.54 and 28,694.18 is: 43,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.40 : 131,718.54 = 28,694.18 : x
  2. Step 2: Convert to fraction form
    87,874.40/131,718.54 = 28,694.18/x
  3. Step 3: Cross multiply
    87,874.40x = 131,718.54 × 28,694.18
  4. Step 4: Simplify right side
    87,874.40x = 3,779,555,496.10
  5. Step 5: Solve for x
    x = 3,779,555,496.10/87,874.40
  6. Step 6: Final answer
    x = 43,010.88

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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.