Home / 87,945.84-131,825.88-28,765.68

Finding the Fourth Proportional to 87,945.84, 131,825.88 and 28,765.68

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Solution

The fourth proportional to 87,945.84, 131,825.88 and 28,765.68 is: 43,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,945.84 : 131,825.88 = 28,765.68 : x
  2. Step 2: Convert to fraction form
    87,945.84/131,825.88 = 28,765.68/x
  3. Step 3: Cross multiply
    87,945.84x = 131,825.88 × 28,765.68
  4. Step 4: Simplify right side
    87,945.84x = 3,792,061,079.80
  5. Step 5: Solve for x
    x = 3,792,061,079.80/87,945.84
  6. Step 6: Final answer
    x = 43,118.14

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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.