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Finding the Fourth Proportional to 80,571.74, 120,898.56 and 36,189.44

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Solution

The fourth proportional to 80,571.74, 120,898.56 and 36,189.44 is: 54,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,571.74 : 120,898.56 = 36,189.44 : x
  2. Step 2: Convert to fraction form
    80,571.74/120,898.56 = 36,189.44/x
  3. Step 3: Cross multiply
    80,571.74x = 120,898.56 × 36,189.44
  4. Step 4: Simplify right side
    80,571.74x = 4,375,251,183.21
  5. Step 5: Solve for x
    x = 4,375,251,183.21/80,571.74
  6. Step 6: Final answer
    x = 54,302.55

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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.