Home / 87,661.44-131,453.28-54,380.16

Finding the Fourth Proportional to 87,661.44, 131,453.28 and 54,380.16

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Solution

The fourth proportional to 87,661.44, 131,453.28 and 54,380.16 is: 81,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,661.44 : 131,453.28 = 54,380.16 : x
  2. Step 2: Convert to fraction form
    87,661.44/131,453.28 = 54,380.16/x
  3. Step 3: Cross multiply
    87,661.44x = 131,453.28 × 54,380.16
  4. Step 4: Simplify right side
    87,661.44x = 7,148,450,398.92
  5. Step 5: Solve for x
    x = 7,148,450,398.92/87,661.44
  6. Step 6: Final answer
    x = 81,546.12

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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.