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Finding the Fourth Proportional to 68,195.52, 102,283.56 and 21,447.18

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Solution

The fourth proportional to 68,195.52, 102,283.56 and 21,447.18 is: 32,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,195.52 : 102,283.56 = 21,447.18 : x
  2. Step 2: Convert to fraction form
    68,195.52/102,283.56 = 21,447.18/x
  3. Step 3: Cross multiply
    68,195.52x = 102,283.56 × 21,447.18
  4. Step 4: Simplify right side
    68,195.52x = 2,193,693,922.36
  5. Step 5: Solve for x
    x = 2,193,693,922.36/68,195.52
  6. Step 6: Final answer
    x = 32,167.71

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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.