Home / 54,948.42-82,422.72-19,879.92

Finding the Fourth Proportional to 54,948.42, 82,422.72 and 19,879.92

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Solution

The fourth proportional to 54,948.42, 82,422.72 and 19,879.92 is: 29,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,948.42 : 82,422.72 = 19,879.92 : x
  2. Step 2: Convert to fraction form
    54,948.42/82,422.72 = 19,879.92/x
  3. Step 3: Cross multiply
    54,948.42x = 82,422.72 × 19,879.92
  4. Step 4: Simplify right side
    54,948.42x = 1,638,557,079.78
  5. Step 5: Solve for x
    x = 1,638,557,079.78/54,948.42
  6. Step 6: Final answer
    x = 29,819.91

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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.