Home / 84,209.11-126,286.31-28,034.12

Finding the Fourth Proportional to 84,209.11, 126,286.31 and 28,034.12

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Solution

The fourth proportional to 84,209.11, 126,286.31 and 28,034.12 is: 42,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.11 : 126,286.31 = 28,034.12 : x
  2. Step 2: Convert to fraction form
    84,209.11/126,286.31 = 28,034.12/x
  3. Step 3: Cross multiply
    84,209.11x = 126,286.31 × 28,034.12
  4. Step 4: Simplify right side
    84,209.11x = 3,540,325,954.70
  5. Step 5: Solve for x
    x = 3,540,325,954.70/84,209.11
  6. Step 6: Final answer
    x = 42,042.08

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1.5x scale

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.