Home / 80,319.24-120,475.89-38,229.48

Finding the Fourth Proportional to 80,319.24, 120,475.89 and 38,229.48

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Solution

The fourth proportional to 80,319.24, 120,475.89 and 38,229.48 is: 57,342.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,319.24 : 120,475.89 = 38,229.48 : x
  2. Step 2: Convert to fraction form
    80,319.24/120,475.89 = 38,229.48/x
  3. Step 3: Cross multiply
    80,319.24x = 120,475.89 × 38,229.48
  4. Step 4: Simplify right side
    80,319.24x = 4,605,730,627.24
  5. Step 5: Solve for x
    x = 4,605,730,627.24/80,319.24
  6. Step 6: Final answer
    x = 57,342.81

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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.