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Finding the Fourth Proportional to 80,253.80, 120,399.90 and 33,480.68

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Solution

The fourth proportional to 80,253.80, 120,399.90 and 33,480.68 is: 50,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,253.80 : 120,399.90 = 33,480.68 : x
  2. Step 2: Convert to fraction form
    80,253.80/120,399.90 = 33,480.68/x
  3. Step 3: Cross multiply
    80,253.80x = 120,399.90 × 33,480.68
  4. Step 4: Simplify right side
    80,253.80x = 4,031,070,523.93
  5. Step 5: Solve for x
    x = 4,031,070,523.93/80,253.80
  6. Step 6: Final answer
    x = 50,229.03

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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.