Home / 87,919.88-131,877.96-21,360.32

Finding the Fourth Proportional to 87,919.88, 131,877.96 and 21,360.32

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Solution

The fourth proportional to 87,919.88, 131,877.96 and 21,360.32 is: 32,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,919.88 : 131,877.96 = 21,360.32 : x
  2. Step 2: Convert to fraction form
    87,919.88/131,877.96 = 21,360.32/x
  3. Step 3: Cross multiply
    87,919.88x = 131,877.96 × 21,360.32
  4. Step 4: Simplify right side
    87,919.88x = 2,816,955,426.55
  5. Step 5: Solve for x
    x = 2,816,955,426.55/87,919.88
  6. Step 6: Final answer
    x = 32,040.03

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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.