Home / 80,135.55-110,552.31-48,286.35

Finding the Fourth Proportional to 80,135.55, 110,552.31 and 48,286.35

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Solution

The fourth proportional to 80,135.55, 110,552.31 and 48,286.35 is: 66,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,135.55 : 110,552.31 = 48,286.35 : x
  2. Step 2: Convert to fraction form
    80,135.55/110,552.31 = 48,286.35/x
  3. Step 3: Cross multiply
    80,135.55x = 110,552.31 × 48,286.35
  4. Step 4: Simplify right side
    80,135.55x = 5,338,167,533.97
  5. Step 5: Solve for x
    x = 5,338,167,533.97/80,135.55
  6. Step 6: Final answer
    x = 66,614.22

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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.