Home / 84,725.26-126,999.21-28,545.95

Finding the Fourth Proportional to 84,725.26, 126,999.21 and 28,545.95

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Solution

The fourth proportional to 84,725.26, 126,999.21 and 28,545.95 is: 42,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,725.26 : 126,999.21 = 28,545.95 : x
  2. Step 2: Convert to fraction form
    84,725.26/126,999.21 = 28,545.95/x
  3. Step 3: Cross multiply
    84,725.26x = 126,999.21 × 28,545.95
  4. Step 4: Simplify right side
    84,725.26x = 3,625,313,098.70
  5. Step 5: Solve for x
    x = 3,625,313,098.70/84,725.26
  6. Step 6: Final answer
    x = 42,789.05

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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.