Home / 83,430.38-125,144.23-20,251.02

Finding the Fourth Proportional to 83,430.38, 125,144.23 and 20,251.02

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Solution

The fourth proportional to 83,430.38, 125,144.23 and 20,251.02 is: 30,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,430.38 : 125,144.23 = 20,251.02 : x
  2. Step 2: Convert to fraction form
    83,430.38/125,144.23 = 20,251.02/x
  3. Step 3: Cross multiply
    83,430.38x = 125,144.23 × 20,251.02
  4. Step 4: Simplify right side
    83,430.38x = 2,534,298,304.61
  5. Step 5: Solve for x
    x = 2,534,298,304.61/83,430.38
  6. Step 6: Final answer
    x = 30,376.20

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1.5x scale

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.