Home / 79,787.19-110,104.38-43,976.42

Finding the Fourth Proportional to 79,787.19, 110,104.38 and 43,976.42

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Solution

The fourth proportional to 79,787.19, 110,104.38 and 43,976.42 is: 60,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,787.19 : 110,104.38 = 43,976.42 : x
  2. Step 2: Convert to fraction form
    79,787.19/110,104.38 = 43,976.42/x
  3. Step 3: Cross multiply
    79,787.19x = 110,104.38 × 43,976.42
  4. Step 4: Simplify right side
    79,787.19x = 4,841,996,321.09
  5. Step 5: Solve for x
    x = 4,841,996,321.09/79,787.19
  6. Step 6: Final answer
    x = 60,686.38

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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.