Home / 78,872.13-108,843.44-50,577.75

Finding the Fourth Proportional to 78,872.13, 108,843.44 and 50,577.75

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Solution

The fourth proportional to 78,872.13, 108,843.44 and 50,577.75 is: 69,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,872.13 : 108,843.44 = 50,577.75 : x
  2. Step 2: Convert to fraction form
    78,872.13/108,843.44 = 50,577.75/x
  3. Step 3: Cross multiply
    78,872.13x = 108,843.44 × 50,577.75
  4. Step 4: Simplify right side
    78,872.13x = 5,505,056,044.57
  5. Step 5: Solve for x
    x = 5,505,056,044.57/78,872.13
  6. Step 6: Final answer
    x = 69,797.23

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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.