Home / 81,249.80-121,917.20-33,254.04

Finding the Fourth Proportional to 81,249.80, 121,917.20 and 33,254.04

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Solution

The fourth proportional to 81,249.80, 121,917.20 and 33,254.04 is: 49,898.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,249.80 : 121,917.20 = 33,254.04 : x
  2. Step 2: Convert to fraction form
    81,249.80/121,917.20 = 33,254.04/x
  3. Step 3: Cross multiply
    81,249.80x = 121,917.20 × 33,254.04
  4. Step 4: Simplify right side
    81,249.80x = 4,054,239,279.22
  5. Step 5: Solve for x
    x = 4,054,239,279.22/81,249.80
  6. Step 6: Final answer
    x = 49,898.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.