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Finding the Fourth Proportional to 80,469.45, 120,600.90 and 44,930.70

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Solution

The fourth proportional to 80,469.45, 120,600.90 and 44,930.70 is: 67,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,469.45 : 120,600.90 = 44,930.70 : x
  2. Step 2: Convert to fraction form
    80,469.45/120,600.90 = 44,930.70/x
  3. Step 3: Cross multiply
    80,469.45x = 120,600.90 × 44,930.70
  4. Step 4: Simplify right side
    80,469.45x = 5,418,682,857.63
  5. Step 5: Solve for x
    x = 5,418,682,857.63/80,469.45
  6. Step 6: Final answer
    x = 67,338.39

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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.