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Finding the Fourth Proportional to 48,727.87, 73,091.80 and 11,791.87

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Solution

The fourth proportional to 48,727.87, 73,091.80 and 11,791.87 is: 17,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,727.87 : 73,091.80 = 11,791.87 : x
  2. Step 2: Convert to fraction form
    48,727.87/73,091.80 = 11,791.87/x
  3. Step 3: Cross multiply
    48,727.87x = 73,091.80 × 11,791.87
  4. Step 4: Simplify right side
    48,727.87x = 861,888,638.21
  5. Step 5: Solve for x
    x = 861,888,638.21/48,727.87
  6. Step 6: Final answer
    x = 17,687.80

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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.