Home / 54,458.88-81,694.72-19,403.52

Finding the Fourth Proportional to 54,458.88, 81,694.72 and 19,403.52

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Solution

The fourth proportional to 54,458.88, 81,694.72 and 19,403.52 is: 29,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458.88 : 81,694.72 = 19,403.52 : x
  2. Step 2: Convert to fraction form
    54,458.88/81,694.72 = 19,403.52/x
  3. Step 3: Cross multiply
    54,458.88x = 81,694.72 × 19,403.52
  4. Step 4: Simplify right side
    54,458.88x = 1,585,165,133.41
  5. Step 5: Solve for x
    x = 1,585,165,133.41/54,458.88
  6. Step 6: Final answer
    x = 29,107.56

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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.