Home / 84,193.38-126,194.61-28,020.30

Finding the Fourth Proportional to 84,193.38, 126,194.61 and 28,020.30

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Solution

The fourth proportional to 84,193.38, 126,194.61 and 28,020.30 is: 41,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,193.38 : 126,194.61 = 28,020.30 : x
  2. Step 2: Convert to fraction form
    84,193.38/126,194.61 = 28,020.30/x
  3. Step 3: Cross multiply
    84,193.38x = 126,194.61 × 28,020.30
  4. Step 4: Simplify right side
    84,193.38x = 3,536,010,830.58
  5. Step 5: Solve for x
    x = 3,536,010,830.58/84,193.38
  6. Step 6: Final answer
    x = 41,998.68

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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.