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Finding the Fourth Proportional to 55,405.26, 83,481.89 and 45,760.59

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Solution

The fourth proportional to 55,405.26, 83,481.89 and 45,760.59 is: 68,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,405.26 : 83,481.89 = 45,760.59 : x
  2. Step 2: Convert to fraction form
    55,405.26/83,481.89 = 45,760.59/x
  3. Step 3: Cross multiply
    55,405.26x = 83,481.89 × 45,760.59
  4. Step 4: Simplify right side
    55,405.26x = 3,820,180,311.91
  5. Step 5: Solve for x
    x = 3,820,180,311.91/55,405.26
  6. Step 6: Final answer
    x = 68,949.78

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.