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Finding the Fourth Proportional to 80,179.68, 120,176.58 and 30,227.79

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Solution

The fourth proportional to 80,179.68, 120,176.58 and 30,227.79 is: 45,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,179.68 : 120,176.58 = 30,227.79 : x
  2. Step 2: Convert to fraction form
    80,179.68/120,176.58 = 30,227.79/x
  3. Step 3: Cross multiply
    80,179.68x = 120,176.58 × 30,227.79
  4. Step 4: Simplify right side
    80,179.68x = 3,632,672,423.16
  5. Step 5: Solve for x
    x = 3,632,672,423.16/80,179.68
  6. Step 6: Final answer
    x = 45,306.65

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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.