Home / 87,877.93-131,789.62-31,710.75

Finding the Fourth Proportional to 87,877.93, 131,789.62 and 31,710.75

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Solution

The fourth proportional to 87,877.93, 131,789.62 and 31,710.75 is: 47,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.93 : 131,789.62 = 31,710.75 : x
  2. Step 2: Convert to fraction form
    87,877.93/131,789.62 = 31,710.75/x
  3. Step 3: Cross multiply
    87,877.93x = 131,789.62 × 31,710.75
  4. Step 4: Simplify right side
    87,877.93x = 4,179,147,692.42
  5. Step 5: Solve for x
    x = 4,179,147,692.42/87,877.93
  6. Step 6: Final answer
    x = 47,556.28

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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.