Home / 87,109.20-130,707-34,517.52

Finding the Fourth Proportional to 87,109.20, 130,707 and 34,517.52

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Solution

The fourth proportional to 87,109.20, 130,707 and 34,517.52 is: 51,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,109.20 : 130,707 = 34,517.52 : x
  2. Step 2: Convert to fraction form
    87,109.20/130,707 = 34,517.52/x
  3. Step 3: Cross multiply
    87,109.20x = 130,707 × 34,517.52
  4. Step 4: Simplify right side
    87,109.20x = 4,511,681,486.64
  5. Step 5: Solve for x
    x = 4,511,681,486.64/87,109.20
  6. Step 6: Final answer
    x = 51,793.40

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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.