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Finding the Fourth Proportional to 80,355.44, 120,555.74 and 29,753.71

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Solution

The fourth proportional to 80,355.44, 120,555.74 and 29,753.71 is: 44,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,355.44 : 120,555.74 = 29,753.71 : x
  2. Step 2: Convert to fraction form
    80,355.44/120,555.74 = 29,753.71/x
  3. Step 3: Cross multiply
    80,355.44x = 120,555.74 × 29,753.71
  4. Step 4: Simplify right side
    80,355.44x = 3,586,980,076.64
  5. Step 5: Solve for x
    x = 3,586,980,076.64/80,355.44
  6. Step 6: Final answer
    x = 44,638.92

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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.