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Finding the Fourth Proportional to 84,650.58, 126,229.92 and 83,891.70

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Solution

The fourth proportional to 84,650.58, 126,229.92 and 83,891.70 is: 125,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,650.58 : 126,229.92 = 83,891.70 : x
  2. Step 2: Convert to fraction form
    84,650.58/126,229.92 = 83,891.70/x
  3. Step 3: Cross multiply
    84,650.58x = 126,229.92 × 83,891.70
  4. Step 4: Simplify right side
    84,650.58x = 10,589,642,579.66
  5. Step 5: Solve for x
    x = 10,589,642,579.66/84,650.58
  6. Step 6: Final answer
    x = 125,098.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.