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Finding the Fourth Proportional to 85,744.33, 118,305.80 and 49,456.87

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Solution

The fourth proportional to 85,744.33, 118,305.80 and 49,456.87 is: 68,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,744.33 : 118,305.80 = 49,456.87 : x
  2. Step 2: Convert to fraction form
    85,744.33/118,305.80 = 49,456.87/x
  3. Step 3: Cross multiply
    85,744.33x = 118,305.80 × 49,456.87
  4. Step 4: Simplify right side
    85,744.33x = 5,851,034,213.26
  5. Step 5: Solve for x
    x = 5,851,034,213.26/85,744.33
  6. Step 6: Final answer
    x = 68,238.15

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