Home / 84,517.36-126,778.98-40,121.24

Finding the Fourth Proportional to 84,517.36, 126,778.98 and 40,121.24

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Solution

The fourth proportional to 84,517.36, 126,778.98 and 40,121.24 is: 60,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,517.36 : 126,778.98 = 40,121.24 : x
  2. Step 2: Convert to fraction form
    84,517.36/126,778.98 = 40,121.24/x
  3. Step 3: Cross multiply
    84,517.36x = 126,778.98 × 40,121.24
  4. Step 4: Simplify right side
    84,517.36x = 5,086,529,883.54
  5. Step 5: Solve for x
    x = 5,086,529,883.54/84,517.36
  6. Step 6: Final answer
    x = 60,183.26

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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.