Home / 87,229.09-120,382.37-49,505.77

Finding the Fourth Proportional to 87,229.09, 120,382.37 and 49,505.77

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Solution

The fourth proportional to 87,229.09, 120,382.37 and 49,505.77 is: 68,321.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,229.09 : 120,382.37 = 49,505.77 : x
  2. Step 2: Convert to fraction form
    87,229.09/120,382.37 = 49,505.77/x
  3. Step 3: Cross multiply
    87,229.09x = 120,382.37 × 49,505.77
  4. Step 4: Simplify right side
    87,229.09x = 5,959,621,921.27
  5. Step 5: Solve for x
    x = 5,959,621,921.27/87,229.09
  6. Step 6: Final answer
    x = 68,321.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.