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Finding the Fourth Proportional to 43,493.52, 65,227.68 and 19,787.88

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Solution

The fourth proportional to 43,493.52, 65,227.68 and 19,787.88 is: 29,676.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,493.52 : 65,227.68 = 19,787.88 : x
  2. Step 2: Convert to fraction form
    43,493.52/65,227.68 = 19,787.88/x
  3. Step 3: Cross multiply
    43,493.52x = 65,227.68 × 19,787.88
  4. Step 4: Simplify right side
    43,493.52x = 1,290,717,504.52
  5. Step 5: Solve for x
    x = 1,290,717,504.52/43,493.52
  6. Step 6: Final answer
    x = 29,676.09

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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.