Home / 87,888.83-131,879.73-47,936.66

Finding the Fourth Proportional to 87,888.83, 131,879.73 and 47,936.66

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Solution

The fourth proportional to 87,888.83, 131,879.73 and 47,936.66 is: 71,930.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,888.83 : 131,879.73 = 47,936.66 : x
  2. Step 2: Convert to fraction form
    87,888.83/131,879.73 = 47,936.66/x
  3. Step 3: Cross multiply
    87,888.83x = 131,879.73 × 47,936.66
  4. Step 4: Simplify right side
    87,888.83x = 6,321,873,777.90
  5. Step 5: Solve for x
    x = 6,321,873,777.90/87,888.83
  6. Step 6: Final answer
    x = 71,930.34

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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.