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Finding the Fourth Proportional to 115,879.40, 173,819.10 and 49,321.70

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Solution

The fourth proportional to 115,879.40, 173,819.10 and 49,321.70 is: 73,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,879.40 : 173,819.10 = 49,321.70 : x
  2. Step 2: Convert to fraction form
    115,879.40/173,819.10 = 49,321.70/x
  3. Step 3: Cross multiply
    115,879.40x = 173,819.10 × 49,321.70
  4. Step 4: Simplify right side
    115,879.40x = 8,573,053,504.47
  5. Step 5: Solve for x
    x = 8,573,053,504.47/115,879.40
  6. Step 6: Final answer
    x = 73,982.55

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1.5x scale

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.