Home / 85,169.72-117,508.20-49,352.82

Finding the Fourth Proportional to 85,169.72, 117,508.20 and 49,352.82

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Solution

The fourth proportional to 85,169.72, 117,508.20 and 49,352.82 is: 68,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,169.72 : 117,508.20 = 49,352.82 : x
  2. Step 2: Convert to fraction form
    85,169.72/117,508.20 = 49,352.82/x
  3. Step 3: Cross multiply
    85,169.72x = 117,508.20 × 49,352.82
  4. Step 4: Simplify right side
    85,169.72x = 5,799,361,043.12
  5. Step 5: Solve for x
    x = 5,799,361,043.12/85,169.72
  6. Step 6: Final answer
    x = 68,091.82

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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.