Home / 80,828.56-111,589.68-54,016.48

Finding the Fourth Proportional to 80,828.56, 111,589.68 and 54,016.48

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Solution

The fourth proportional to 80,828.56, 111,589.68 and 54,016.48 is: 74,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,828.56 : 111,589.68 = 54,016.48 : x
  2. Step 2: Convert to fraction form
    80,828.56/111,589.68 = 54,016.48/x
  3. Step 3: Cross multiply
    80,828.56x = 111,589.68 × 54,016.48
  4. Step 4: Simplify right side
    80,828.56x = 6,027,681,717.93
  5. Step 5: Solve for x
    x = 6,027,681,717.93/80,828.56
  6. Step 6: Final answer
    x = 74,573.66

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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.