Home / 69,091.38-103,638.82-51,671.78

Finding the Fourth Proportional to 69,091.38, 103,638.82 and 51,671.78

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Solution

The fourth proportional to 69,091.38, 103,638.82 and 51,671.78 is: 77,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,091.38 : 103,638.82 = 51,671.78 : x
  2. Step 2: Convert to fraction form
    69,091.38/103,638.82 = 51,671.78/x
  3. Step 3: Cross multiply
    69,091.38x = 103,638.82 × 51,671.78
  4. Step 4: Simplify right side
    69,091.38x = 5,355,202,306.50
  5. Step 5: Solve for x
    x = 5,355,202,306.50/69,091.38
  6. Step 6: Final answer
    x = 77,508.98

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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.