Home / 82,679.10-123,976.89-35,910.78

Finding the Fourth Proportional to 82,679.10, 123,976.89 and 35,910.78

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Solution

The fourth proportional to 82,679.10, 123,976.89 and 35,910.78 is: 53,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,679.10 : 123,976.89 = 35,910.78 : x
  2. Step 2: Convert to fraction form
    82,679.10/123,976.89 = 35,910.78/x
  3. Step 3: Cross multiply
    82,679.10x = 123,976.89 × 35,910.78
  4. Step 4: Simplify right side
    82,679.10x = 4,452,106,821.87
  5. Step 5: Solve for x
    x = 4,452,106,821.87/82,679.10
  6. Step 6: Final answer
    x = 53,848.03

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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.