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Finding the Fourth Proportional to 80,572.74, 120,900.06 and 36,190.44

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Solution

The fourth proportional to 80,572.74, 120,900.06 and 36,190.44 is: 54,304.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,572.74 : 120,900.06 = 36,190.44 : x
  2. Step 2: Convert to fraction form
    80,572.74/120,900.06 = 36,190.44/x
  3. Step 3: Cross multiply
    80,572.74x = 120,900.06 × 36,190.44
  4. Step 4: Simplify right side
    80,572.74x = 4,375,426,367.43
  5. Step 5: Solve for x
    x = 4,375,426,367.43/80,572.74
  6. Step 6: Final answer
    x = 54,304.05

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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.