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Finding the Fourth Proportional to 80,630.66, 120,845.72 and 43,098.10

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Solution

The fourth proportional to 80,630.66, 120,845.72 and 43,098.10 is: 64,593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,630.66 : 120,845.72 = 43,098.10 : x
  2. Step 2: Convert to fraction form
    80,630.66/120,845.72 = 43,098.10/x
  3. Step 3: Cross multiply
    80,630.66x = 120,845.72 × 43,098.10
  4. Step 4: Simplify right side
    80,630.66x = 5,208,220,925.13
  5. Step 5: Solve for x
    x = 5,208,220,925.13/80,630.66
  6. Step 6: Final answer
    x = 64,593.55

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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.