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Finding the Fourth Proportional to 80,346.70, 120,530.67 and 29,738.89

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Solution

The fourth proportional to 80,346.70, 120,530.67 and 29,738.89 is: 44,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,346.70 : 120,530.67 = 29,738.89 : x
  2. Step 2: Convert to fraction form
    80,346.70/120,530.67 = 29,738.89/x
  3. Step 3: Cross multiply
    80,346.70x = 120,530.67 × 29,738.89
  4. Step 4: Simplify right side
    80,346.70x = 3,584,448,336.76
  5. Step 5: Solve for x
    x = 3,584,448,336.76/80,346.70
  6. Step 6: Final answer
    x = 44,612.27

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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.