Home / 54,759.12-82,143.29-17,318.36

Finding the Fourth Proportional to 54,759.12, 82,143.29 and 17,318.36

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Solution

The fourth proportional to 54,759.12, 82,143.29 and 17,318.36 is: 25,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.12 : 82,143.29 = 17,318.36 : x
  2. Step 2: Convert to fraction form
    54,759.12/82,143.29 = 17,318.36/x
  3. Step 3: Cross multiply
    54,759.12x = 82,143.29 × 17,318.36
  4. Step 4: Simplify right side
    54,759.12x = 1,422,587,067.80
  5. Step 5: Solve for x
    x = 1,422,587,067.80/54,759.12
  6. Step 6: Final answer
    x = 25,979.00

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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.