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Finding the Fourth Proportional to 42,437.52, 63,654.46 and 12,854.09

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Solution

The fourth proportional to 42,437.52, 63,654.46 and 12,854.09 is: 19,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,437.52 : 63,654.46 = 12,854.09 : x
  2. Step 2: Convert to fraction form
    42,437.52/63,654.46 = 12,854.09/x
  3. Step 3: Cross multiply
    42,437.52x = 63,654.46 × 12,854.09
  4. Step 4: Simplify right side
    42,437.52x = 818,220,284.74
  5. Step 5: Solve for x
    x = 818,220,284.74/42,437.52
  6. Step 6: Final answer
    x = 19,280.59

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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.