Home / 71,183.70-98,235.56-39,354.65

Finding the Fourth Proportional to 71,183.70, 98,235.56 and 39,354.65

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Solution

The fourth proportional to 71,183.70, 98,235.56 and 39,354.65 is: 54,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,183.70 : 98,235.56 = 39,354.65 : x
  2. Step 2: Convert to fraction form
    71,183.70/98,235.56 = 39,354.65/x
  3. Step 3: Cross multiply
    71,183.70x = 98,235.56 × 39,354.65
  4. Step 4: Simplify right side
    71,183.70x = 3,866,025,559.29
  5. Step 5: Solve for x
    x = 3,866,025,559.29/71,183.70
  6. Step 6: Final answer
    x = 54,310.55

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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.