Home / 86,207.28-129,319.92-23,877.78

Finding the Fourth Proportional to 86,207.28, 129,319.92 and 23,877.78

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Solution

The fourth proportional to 86,207.28, 129,319.92 and 23,877.78 is: 35,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,207.28 : 129,319.92 = 23,877.78 : x
  2. Step 2: Convert to fraction form
    86,207.28/129,319.92 = 23,877.78/x
  3. Step 3: Cross multiply
    86,207.28x = 129,319.92 × 23,877.78
  4. Step 4: Simplify right side
    86,207.28x = 3,087,872,599.38
  5. Step 5: Solve for x
    x = 3,087,872,599.38/86,207.28
  6. Step 6: Final answer
    x = 35,819.16

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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.