Home / 83,723.48-115,471.58-55,072.56

Finding the Fourth Proportional to 83,723.48, 115,471.58 and 55,072.56

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Solution

The fourth proportional to 83,723.48, 115,471.58 and 55,072.56 is: 75,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,723.48 : 115,471.58 = 55,072.56 : x
  2. Step 2: Convert to fraction form
    83,723.48/115,471.58 = 55,072.56/x
  3. Step 3: Cross multiply
    83,723.48x = 115,471.58 × 55,072.56
  4. Step 4: Simplify right side
    83,723.48x = 6,359,315,517.84
  5. Step 5: Solve for x
    x = 6,359,315,517.84/83,723.48
  6. Step 6: Final answer
    x = 75,956.18

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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.