Home / 81,795.35-122,567.88-55,042.27

Finding the Fourth Proportional to 81,795.35, 122,567.88 and 55,042.27

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Solution

The fourth proportional to 81,795.35, 122,567.88 and 55,042.27 is: 82,479.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,795.35 : 122,567.88 = 55,042.27 : x
  2. Step 2: Convert to fraction form
    81,795.35/122,567.88 = 55,042.27/x
  3. Step 3: Cross multiply
    81,795.35x = 122,567.88 × 55,042.27
  4. Step 4: Simplify right side
    81,795.35x = 6,746,414,244.28
  5. Step 5: Solve for x
    x = 6,746,414,244.28/81,795.35
  6. Step 6: Final answer
    x = 82,479.19

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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.