Home / 87,879.44-131,791.86-31,712.26

Finding the Fourth Proportional to 87,879.44, 131,791.86 and 31,712.26

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Solution

The fourth proportional to 87,879.44, 131,791.86 and 31,712.26 is: 47,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.44 : 131,791.86 = 31,712.26 : x
  2. Step 2: Convert to fraction form
    87,879.44/131,791.86 = 31,712.26/x
  3. Step 3: Cross multiply
    87,879.44x = 131,791.86 × 31,712.26
  4. Step 4: Simplify right side
    87,879.44x = 4,179,417,730.20
  5. Step 5: Solve for x
    x = 4,179,417,730.20/87,879.44
  6. Step 6: Final answer
    x = 47,558.54

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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.