Home / 54,789.14-82,134.36-19,704.12

Finding the Fourth Proportional to 54,789.14, 82,134.36 and 19,704.12

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Solution

The fourth proportional to 54,789.14, 82,134.36 and 19,704.12 is: 29,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,789.14 : 82,134.36 = 19,704.12 : x
  2. Step 2: Convert to fraction form
    54,789.14/82,134.36 = 19,704.12/x
  3. Step 3: Cross multiply
    54,789.14x = 82,134.36 × 19,704.12
  4. Step 4: Simplify right side
    54,789.14x = 1,618,385,285.56
  5. Step 5: Solve for x
    x = 1,618,385,285.56/54,789.14
  6. Step 6: Final answer
    x = 29,538.43

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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.