Home / 87,891.30-121,297.46-49,657.86

Finding the Fourth Proportional to 87,891.30, 121,297.46 and 49,657.86

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Solution

The fourth proportional to 87,891.30, 121,297.46 and 49,657.86 is: 68,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,891.30 : 121,297.46 = 49,657.86 : x
  2. Step 2: Convert to fraction form
    87,891.30/121,297.46 = 49,657.86/x
  3. Step 3: Cross multiply
    87,891.30x = 121,297.46 × 49,657.86
  4. Step 4: Simplify right side
    87,891.30x = 6,023,372,038.75
  5. Step 5: Solve for x
    x = 6,023,372,038.75/87,891.30
  6. Step 6: Final answer
    x = 68,532.06

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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.