Home / 87,867.30-131,818.16-28,687.08

Finding the Fourth Proportional to 87,867.30, 131,818.16 and 28,687.08

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Solution

The fourth proportional to 87,867.30, 131,818.16 and 28,687.08 is: 43,036.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.30 : 131,818.16 = 28,687.08 : x
  2. Step 2: Convert to fraction form
    87,867.30/131,818.16 = 28,687.08/x
  3. Step 3: Cross multiply
    87,867.30x = 131,818.16 × 28,687.08
  4. Step 4: Simplify right side
    87,867.30x = 3,781,478,173.09
  5. Step 5: Solve for x
    x = 3,781,478,173.09/87,867.30
  6. Step 6: Final answer
    x = 43,036.24

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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.