Home / 87,832.08-131,747.69-21,272.21

Finding the Fourth Proportional to 87,832.08, 131,747.69 and 21,272.21

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Solution

The fourth proportional to 87,832.08, 131,747.69 and 21,272.21 is: 31,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,832.08 : 131,747.69 = 21,272.21 : x
  2. Step 2: Convert to fraction form
    87,832.08/131,747.69 = 21,272.21/x
  3. Step 3: Cross multiply
    87,832.08x = 131,747.69 × 21,272.21
  4. Step 4: Simplify right side
    87,832.08x = 2,802,563,763.60
  5. Step 5: Solve for x
    x = 2,802,563,763.60/87,832.08
  6. Step 6: Final answer
    x = 31,908.20

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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.