Home / 84,025.87-115,954.20-45,785.75

Finding the Fourth Proportional to 84,025.87, 115,954.20 and 45,785.75

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Solution

The fourth proportional to 84,025.87, 115,954.20 and 45,785.75 is: 63,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,025.87 : 115,954.20 = 45,785.75 : x
  2. Step 2: Convert to fraction form
    84,025.87/115,954.20 = 45,785.75/x
  3. Step 3: Cross multiply
    84,025.87x = 115,954.20 × 45,785.75
  4. Step 4: Simplify right side
    84,025.87x = 5,309,049,565.84
  5. Step 5: Solve for x
    x = 5,309,049,565.84/84,025.87
  6. Step 6: Final answer
    x = 63,183.51

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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.