Home / 81,796.35-122,569.38-55,043.27

Finding the Fourth Proportional to 81,796.35, 122,569.38 and 55,043.27

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Solution

The fourth proportional to 81,796.35, 122,569.38 and 55,043.27 is: 82,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,796.35 : 122,569.38 = 55,043.27 : x
  2. Step 2: Convert to fraction form
    81,796.35/122,569.38 = 55,043.27/x
  3. Step 3: Cross multiply
    81,796.35x = 122,569.38 × 55,043.27
  4. Step 4: Simplify right side
    81,796.35x = 6,746,619,170.65
  5. Step 5: Solve for x
    x = 6,746,619,170.65/81,796.35
  6. Step 6: Final answer
    x = 82,480.68

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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.