Home / 81,046.32-111,710.04-54,179.03

Finding the Fourth Proportional to 81,046.32, 111,710.04 and 54,179.03

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Solution

The fourth proportional to 81,046.32, 111,710.04 and 54,179.03 is: 74,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,046.32 : 111,710.04 = 54,179.03 : x
  2. Step 2: Convert to fraction form
    81,046.32/111,710.04 = 54,179.03/x
  3. Step 3: Cross multiply
    81,046.32x = 111,710.04 × 54,179.03
  4. Step 4: Simplify right side
    81,046.32x = 6,052,341,049.91
  5. Step 5: Solve for x
    x = 6,052,341,049.91/81,046.32
  6. Step 6: Final answer
    x = 74,677.56

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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.