Home / 87,497.40-131,159.70-43,087.80

Finding the Fourth Proportional to 87,497.40, 131,159.70 and 43,087.80

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Solution

The fourth proportional to 87,497.40, 131,159.70 and 43,087.80 is: 64,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,497.40 : 131,159.70 = 43,087.80 : x
  2. Step 2: Convert to fraction form
    87,497.40/131,159.70 = 43,087.80/x
  3. Step 3: Cross multiply
    87,497.40x = 131,159.70 × 43,087.80
  4. Step 4: Simplify right side
    87,497.40x = 5,651,382,921.66
  5. Step 5: Solve for x
    x = 5,651,382,921.66/87,497.40
  6. Step 6: Final answer
    x = 64,589.15

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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.