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Finding the Fourth Proportional to 80,379.43, 120,560.58 and 32,999.49

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Solution

The fourth proportional to 80,379.43, 120,560.58 and 32,999.49 is: 49,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,379.43 : 120,560.58 = 32,999.49 : x
  2. Step 2: Convert to fraction form
    80,379.43/120,560.58 = 32,999.49/x
  3. Step 3: Cross multiply
    80,379.43x = 120,560.58 × 32,999.49
  4. Step 4: Simplify right side
    80,379.43x = 3,978,437,654.10
  5. Step 5: Solve for x
    x = 3,978,437,654.10/80,379.43
  6. Step 6: Final answer
    x = 49,495.72

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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.