Home / 86,910.12-119,932.92-49,183.56

Finding the Fourth Proportional to 86,910.12, 119,932.92 and 49,183.56

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Solution

The fourth proportional to 86,910.12, 119,932.92 and 49,183.56 is: 67,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,910.12 : 119,932.92 = 49,183.56 : x
  2. Step 2: Convert to fraction form
    86,910.12/119,932.92 = 49,183.56/x
  3. Step 3: Cross multiply
    86,910.12x = 119,932.92 × 49,183.56
  4. Step 4: Simplify right side
    86,910.12x = 5,898,727,966.80
  5. Step 5: Solve for x
    x = 5,898,727,966.80/86,910.12
  6. Step 6: Final answer
    x = 67,871.59

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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.