Home / 87,305.97-130,997.84-45,743.25

Finding the Fourth Proportional to 87,305.97, 130,997.84 and 45,743.25

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Solution

The fourth proportional to 87,305.97, 130,997.84 and 45,743.25 is: 68,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,305.97 : 130,997.84 = 45,743.25 : x
  2. Step 2: Convert to fraction form
    87,305.97/130,997.84 = 45,743.25/x
  3. Step 3: Cross multiply
    87,305.97x = 130,997.84 × 45,743.25
  4. Step 4: Simplify right side
    87,305.97x = 5,992,266,715.86
  5. Step 5: Solve for x
    x = 5,992,266,715.86/87,305.97
  6. Step 6: Final answer
    x = 68,635.25

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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.