Home / 87,918.88-131,876.46-21,359.32

Finding the Fourth Proportional to 87,918.88, 131,876.46 and 21,359.32

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Solution

The fourth proportional to 87,918.88, 131,876.46 and 21,359.32 is: 32,038.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.88 : 131,876.46 = 21,359.32 : x
  2. Step 2: Convert to fraction form
    87,918.88/131,876.46 = 21,359.32/x
  3. Step 3: Cross multiply
    87,918.88x = 131,876.46 × 21,359.32
  4. Step 4: Simplify right side
    87,918.88x = 2,816,791,509.61
  5. Step 5: Solve for x
    x = 2,816,791,509.61/87,918.88
  6. Step 6: Final answer
    x = 32,038.53

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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.