Home / 83,105.60-114,779.04-54,939.20

Finding the Fourth Proportional to 83,105.60, 114,779.04 and 54,939.20

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Solution

The fourth proportional to 83,105.60, 114,779.04 and 54,939.20 is: 75,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,105.60 : 114,779.04 = 54,939.20 : x
  2. Step 2: Convert to fraction form
    83,105.60/114,779.04 = 54,939.20/x
  3. Step 3: Cross multiply
    83,105.60x = 114,779.04 × 54,939.20
  4. Step 4: Simplify right side
    83,105.60x = 6,305,868,634.37
  5. Step 5: Solve for x
    x = 6,305,868,634.37/83,105.60
  6. Step 6: Final answer
    x = 75,877.78

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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.