Home / 55,020.33-82,542.78-19,959.21

Finding the Fourth Proportional to 55,020.33, 82,542.78 and 19,959.21

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Solution

The fourth proportional to 55,020.33, 82,542.78 and 19,959.21 is: 29,943.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,020.33 : 82,542.78 = 19,959.21 : x
  2. Step 2: Convert to fraction form
    55,020.33/82,542.78 = 19,959.21/x
  3. Step 3: Cross multiply
    55,020.33x = 82,542.78 × 19,959.21
  4. Step 4: Simplify right side
    55,020.33x = 1,647,488,680.00
  5. Step 5: Solve for x
    x = 1,647,488,680.00/55,020.33
  6. Step 6: Final answer
    x = 29,943.27

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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.