Home / 80,423.20-120,613.20-33,666.40

Finding the Fourth Proportional to 80,423.20, 120,613.20 and 33,666.40

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Solution

The fourth proportional to 80,423.20, 120,613.20 and 33,666.40 is: 50,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,423.20 : 120,613.20 = 33,666.40 : x
  2. Step 2: Convert to fraction form
    80,423.20/120,613.20 = 33,666.40/x
  3. Step 3: Cross multiply
    80,423.20x = 120,613.20 × 33,666.40
  4. Step 4: Simplify right side
    80,423.20x = 4,060,612,236.48
  5. Step 5: Solve for x
    x = 4,060,612,236.48/80,423.20
  6. Step 6: Final answer
    x = 50,490.56

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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.