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Finding the Fourth Proportional to 80,203.28, 120,311.16 and 33,469.52

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Solution

The fourth proportional to 80,203.28, 120,311.16 and 33,469.52 is: 50,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,203.28 : 120,311.16 = 33,469.52 : x
  2. Step 2: Convert to fraction form
    80,203.28/120,311.16 = 33,469.52/x
  3. Step 3: Cross multiply
    80,203.28x = 120,311.16 × 33,469.52
  4. Step 4: Simplify right side
    80,203.28x = 4,026,756,775.84
  5. Step 5: Solve for x
    x = 4,026,756,775.84/80,203.28
  6. Step 6: Final answer
    x = 50,206.88

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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.