Home / 83,939.44-115,586.44-82,076.72

Finding the Fourth Proportional to 83,939.44, 115,586.44 and 82,076.72

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Solution

The fourth proportional to 83,939.44, 115,586.44 and 82,076.72 is: 113,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,939.44 : 115,586.44 = 82,076.72 : x
  2. Step 2: Convert to fraction form
    83,939.44/115,586.44 = 82,076.72/x
  3. Step 3: Cross multiply
    83,939.44x = 115,586.44 × 82,076.72
  4. Step 4: Simplify right side
    83,939.44x = 9,486,955,871.68
  5. Step 5: Solve for x
    x = 9,486,955,871.68/83,939.44
  6. Step 6: Final answer
    x = 113,021.43

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1.5x scale

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.