Home / 54,948.06-82,422.09-19,879.56

Finding the Fourth Proportional to 54,948.06, 82,422.09 and 19,879.56

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Solution

The fourth proportional to 54,948.06, 82,422.09 and 19,879.56 is: 29,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,948.06 : 82,422.09 = 19,879.56 : x
  2. Step 2: Convert to fraction form
    54,948.06/82,422.09 = 19,879.56/x
  3. Step 3: Cross multiply
    54,948.06x = 82,422.09 × 19,879.56
  4. Step 4: Simplify right side
    54,948.06x = 1,638,514,883.48
  5. Step 5: Solve for x
    x = 1,638,514,883.48/54,948.06
  6. Step 6: Final answer
    x = 29,819.34

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1.5x scale

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.