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Finding the Fourth Proportional to 84,260.58, 126,414.49 and 36,879.80

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Solution

The fourth proportional to 84,260.58, 126,414.49 and 36,879.80 is: 55,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,260.58 : 126,414.49 = 36,879.80 : x
  2. Step 2: Convert to fraction form
    84,260.58/126,414.49 = 36,879.80/x
  3. Step 3: Cross multiply
    84,260.58x = 126,414.49 × 36,879.80
  4. Step 4: Simplify right side
    84,260.58x = 4,662,141,108.30
  5. Step 5: Solve for x
    x = 4,662,141,108.30/84,260.58
  6. Step 6: Final answer
    x = 55,330.04

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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.