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Finding the Fourth Proportional to 54,139.92, 80,817.78 and 46,791.60

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Solution

The fourth proportional to 54,139.92, 80,817.78 and 46,791.60 is: 69,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.92 : 80,817.78 = 46,791.60 : x
  2. Step 2: Convert to fraction form
    54,139.92/80,817.78 = 46,791.60/x
  3. Step 3: Cross multiply
    54,139.92x = 80,817.78 × 46,791.60
  4. Step 4: Simplify right side
    54,139.92x = 3,781,593,234.65
  5. Step 5: Solve for x
    x = 3,781,593,234.65/54,139.92
  6. Step 6: Final answer
    x = 69,848.52

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.