Home / 83,796.11-115,675.91-49,815.60

Finding the Fourth Proportional to 83,796.11, 115,675.91 and 49,815.60

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Solution

The fourth proportional to 83,796.11, 115,675.91 and 49,815.60 is: 68,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,796.11 : 115,675.91 = 49,815.60 : x
  2. Step 2: Convert to fraction form
    83,796.11/115,675.91 = 49,815.60/x
  3. Step 3: Cross multiply
    83,796.11x = 115,675.91 × 49,815.60
  4. Step 4: Simplify right side
    83,796.11x = 5,762,464,862.20
  5. Step 5: Solve for x
    x = 5,762,464,862.20/83,796.11
  6. Step 6: Final answer
    x = 68,767.69

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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.