Home / 87,879.96-131,778.51-31,712.73

Finding the Fourth Proportional to 87,879.96, 131,778.51 and 31,712.73

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Solution

The fourth proportional to 87,879.96, 131,778.51 and 31,712.73 is: 47,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.96 : 131,778.51 = 31,712.73 : x
  2. Step 2: Convert to fraction form
    87,879.96/131,778.51 = 31,712.73/x
  3. Step 3: Cross multiply
    87,879.96x = 131,778.51 × 31,712.73
  4. Step 4: Simplify right side
    87,879.96x = 4,179,056,307.43
  5. Step 5: Solve for x
    x = 4,179,056,307.43/87,879.96
  6. Step 6: Final answer
    x = 47,554.14

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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.