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Finding the Fourth Proportional to 67,288, 92,857.44 and 39,010.09

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Solution

The fourth proportional to 67,288, 92,857.44 and 39,010.09 is: 53,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,288 : 92,857.44 = 39,010.09 : x
  2. Step 2: Convert to fraction form
    67,288/92,857.44 = 39,010.09/x
  3. Step 3: Cross multiply
    67,288x = 92,857.44 × 39,010.09
  4. Step 4: Simplify right side
    67,288x = 3,622,377,091.57
  5. Step 5: Solve for x
    x = 3,622,377,091.57/67,288
  6. Step 6: Final answer
    x = 53,833.92

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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.