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Finding the Fourth Proportional to 80,610.44, 120,915.50 and 21,446.18

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Solution

The fourth proportional to 80,610.44, 120,915.50 and 21,446.18 is: 32,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,610.44 : 120,915.50 = 21,446.18 : x
  2. Step 2: Convert to fraction form
    80,610.44/120,915.50 = 21,446.18/x
  3. Step 3: Cross multiply
    80,610.44x = 120,915.50 × 21,446.18
  4. Step 4: Simplify right side
    80,610.44x = 2,593,175,577.79
  5. Step 5: Solve for x
    x = 2,593,175,577.79/80,610.44
  6. Step 6: Final answer
    x = 32,169.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.