Home / 83,447.88-125,434.26-72,491.04

Finding the Fourth Proportional to 83,447.88, 125,434.26 and 72,491.04

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Solution

The fourth proportional to 83,447.88, 125,434.26 and 72,491.04 is: 108,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,447.88 : 125,434.26 = 72,491.04 : x
  2. Step 2: Convert to fraction form
    83,447.88/125,434.26 = 72,491.04/x
  3. Step 3: Cross multiply
    83,447.88x = 125,434.26 × 72,491.04
  4. Step 4: Simplify right side
    83,447.88x = 9,092,859,959.03
  5. Step 5: Solve for x
    x = 9,092,859,959.03/83,447.88
  6. Step 6: Final answer
    x = 108,964.54

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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.