Home / 87,988.43-131,982.64-40,589.49

Finding the Fourth Proportional to 87,988.43, 131,982.64 and 40,589.49

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Solution

The fourth proportional to 87,988.43, 131,982.64 and 40,589.49 is: 60,884.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,988.43 : 131,982.64 = 40,589.49 : x
  2. Step 2: Convert to fraction form
    87,988.43/131,982.64 = 40,589.49/x
  3. Step 3: Cross multiply
    87,988.43x = 131,982.64 × 40,589.49
  4. Step 4: Simplify right side
    87,988.43x = 5,357,107,843.51
  5. Step 5: Solve for x
    x = 5,357,107,843.51/87,988.43
  6. Step 6: Final answer
    x = 60,884.23

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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.