Home / 87,261.80-120,414.58-49,009.14

Finding the Fourth Proportional to 87,261.80, 120,414.58 and 49,009.14

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Solution

The fourth proportional to 87,261.80, 120,414.58 and 49,009.14 is: 67,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.80 : 120,414.58 = 49,009.14 : x
  2. Step 2: Convert to fraction form
    87,261.80/120,414.58 = 49,009.14/x
  3. Step 3: Cross multiply
    87,261.80x = 120,414.58 × 49,009.14
  4. Step 4: Simplify right side
    87,261.80x = 5,901,414,886.74
  5. Step 5: Solve for x
    x = 5,901,414,886.74/87,261.80
  6. Step 6: Final answer
    x = 67,628.85

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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.