Home / 68,942.72-103,436.37-33,857.78

Finding the Fourth Proportional to 68,942.72, 103,436.37 and 33,857.78

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Solution

The fourth proportional to 68,942.72, 103,436.37 and 33,857.78 is: 50,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,942.72 : 103,436.37 = 33,857.78 : x
  2. Step 2: Convert to fraction form
    68,942.72/103,436.37 = 33,857.78/x
  3. Step 3: Cross multiply
    68,942.72x = 103,436.37 × 33,857.78
  4. Step 4: Simplify right side
    68,942.72x = 3,502,125,342.28
  5. Step 5: Solve for x
    x = 3,502,125,342.28/68,942.72
  6. Step 6: Final answer
    x = 50,797.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.