Home / 87,958.88-131,936.42-21,399.36

Finding the Fourth Proportional to 87,958.88, 131,936.42 and 21,399.36

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Solution

The fourth proportional to 87,958.88, 131,936.42 and 21,399.36 is: 32,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,958.88 : 131,936.42 = 21,399.36 : x
  2. Step 2: Convert to fraction form
    87,958.88/131,936.42 = 21,399.36/x
  3. Step 3: Cross multiply
    87,958.88x = 131,936.42 × 21,399.36
  4. Step 4: Simplify right side
    87,958.88x = 2,823,354,948.69
  5. Step 5: Solve for x
    x = 2,823,354,948.69/87,958.88
  6. Step 6: Final answer
    x = 32,098.58

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1.5x scale

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.