Home / 54,138.46-81,221.52-22,538.04

Finding the Fourth Proportional to 54,138.46, 81,221.52 and 22,538.04

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Solution

The fourth proportional to 54,138.46, 81,221.52 and 22,538.04 is: 33,812.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.46 : 81,221.52 = 22,538.04 : x
  2. Step 2: Convert to fraction form
    54,138.46/81,221.52 = 22,538.04/x
  3. Step 3: Cross multiply
    54,138.46x = 81,221.52 × 22,538.04
  4. Step 4: Simplify right side
    54,138.46x = 1,830,573,866.62
  5. Step 5: Solve for x
    x = 1,830,573,866.62/54,138.46
  6. Step 6: Final answer
    x = 33,812.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.