Home / 80,475.14-111,076.13-54,991.82

Finding the Fourth Proportional to 80,475.14, 111,076.13 and 54,991.82

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Solution

The fourth proportional to 80,475.14, 111,076.13 and 54,991.82 is: 75,902.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,475.14 : 111,076.13 = 54,991.82 : x
  2. Step 2: Convert to fraction form
    80,475.14/111,076.13 = 54,991.82/x
  3. Step 3: Cross multiply
    80,475.14x = 111,076.13 × 54,991.82
  4. Step 4: Simplify right side
    80,475.14x = 6,108,278,129.36
  5. Step 5: Solve for x
    x = 6,108,278,129.36/80,475.14
  6. Step 6: Final answer
    x = 75,902.68

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Why These Related Problems?

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