Home / 41,979.94-57,936.40-31,351.12

Finding the Fourth Proportional to 41,979.94, 57,936.40 and 31,351.12

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Solution

The fourth proportional to 41,979.94, 57,936.40 and 31,351.12 is: 43,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979.94 : 57,936.40 = 31,351.12 : x
  2. Step 2: Convert to fraction form
    41,979.94/57,936.40 = 31,351.12/x
  3. Step 3: Cross multiply
    41,979.94x = 57,936.40 × 31,351.12
  4. Step 4: Simplify right side
    41,979.94x = 1,816,371,028.77
  5. Step 5: Solve for x
    x = 1,816,371,028.77/41,979.94
  6. Step 6: Final answer
    x = 43,267.59

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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.