Home / 87,422.97-120,632.36-49,181.24

Finding the Fourth Proportional to 87,422.97, 120,632.36 and 49,181.24

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Solution

The fourth proportional to 87,422.97, 120,632.36 and 49,181.24 is: 67,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.97 : 120,632.36 = 49,181.24 : x
  2. Step 2: Convert to fraction form
    87,422.97/120,632.36 = 49,181.24/x
  3. Step 3: Cross multiply
    87,422.97x = 120,632.36 × 49,181.24
  4. Step 4: Simplify right side
    87,422.97x = 5,932,848,199.86
  5. Step 5: Solve for x
    x = 5,932,848,199.86/87,422.97
  6. Step 6: Final answer
    x = 67,863.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.