Home / 84,169.23-126,209.49-28,003.42

Finding the Fourth Proportional to 84,169.23, 126,209.49 and 28,003.42

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Solution

The fourth proportional to 84,169.23, 126,209.49 and 28,003.42 is: 41,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,169.23 : 126,209.49 = 28,003.42 : x
  2. Step 2: Convert to fraction form
    84,169.23/126,209.49 = 28,003.42/x
  3. Step 3: Cross multiply
    84,169.23x = 126,209.49 × 28,003.42
  4. Step 4: Simplify right side
    84,169.23x = 3,534,297,356.46
  5. Step 5: Solve for x
    x = 3,534,297,356.46/84,169.23
  6. Step 6: Final answer
    x = 41,990.37

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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.