Home / 80,439.20-120,672.24-33,695.60

Finding the Fourth Proportional to 80,439.20, 120,672.24 and 33,695.60

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Solution

The fourth proportional to 80,439.20, 120,672.24 and 33,695.60 is: 50,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,439.20 : 120,672.24 = 33,695.60 : x
  2. Step 2: Convert to fraction form
    80,439.20/120,672.24 = 33,695.60/x
  3. Step 3: Cross multiply
    80,439.20x = 120,672.24 × 33,695.60
  4. Step 4: Simplify right side
    80,439.20x = 4,066,123,530.14
  5. Step 5: Solve for x
    x = 4,066,123,530.14/80,439.20
  6. Step 6: Final answer
    x = 50,549.03

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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.