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Finding the Fourth Proportional to 47,654.04, 65,761.02 and 28,787.88

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Solution

The fourth proportional to 47,654.04, 65,761.02 and 28,787.88 is: 39,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,654.04 : 65,761.02 = 28,787.88 : x
  2. Step 2: Convert to fraction form
    47,654.04/65,761.02 = 28,787.88/x
  3. Step 3: Cross multiply
    47,654.04x = 65,761.02 × 28,787.88
  4. Step 4: Simplify right side
    47,654.04x = 1,893,120,352.44
  5. Step 5: Solve for x
    x = 1,893,120,352.44/47,654.04
  6. Step 6: Final answer
    x = 39,726.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.