Home / 87,276.87-120,442.19-49,551.12

Finding the Fourth Proportional to 87,276.87, 120,442.19 and 49,551.12

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Solution

The fourth proportional to 87,276.87, 120,442.19 and 49,551.12 is: 68,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,276.87 : 120,442.19 = 49,551.12 : x
  2. Step 2: Convert to fraction form
    87,276.87/120,442.19 = 49,551.12/x
  3. Step 3: Cross multiply
    87,276.87x = 120,442.19 × 49,551.12
  4. Step 4: Simplify right side
    87,276.87x = 5,968,045,101.98
  5. Step 5: Solve for x
    x = 5,968,045,101.98/87,276.87
  6. Step 6: Final answer
    x = 68,380.61

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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.