Home / 87,288.75-130,839.91-49,768.02

Finding the Fourth Proportional to 87,288.75, 130,839.91 and 49,768.02

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Solution

The fourth proportional to 87,288.75, 130,839.91 and 49,768.02 is: 74,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,288.75 : 130,839.91 = 49,768.02 : x
  2. Step 2: Convert to fraction form
    87,288.75/130,839.91 = 49,768.02/x
  3. Step 3: Cross multiply
    87,288.75x = 130,839.91 × 49,768.02
  4. Step 4: Simplify right side
    87,288.75x = 6,511,643,257.68
  5. Step 5: Solve for x
    x = 6,511,643,257.68/87,288.75
  6. Step 6: Final answer
    x = 74,598.88

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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.