Home / 80,763.24-121,158.70-27,449.58

Finding the Fourth Proportional to 80,763.24, 121,158.70 and 27,449.58

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Solution

The fourth proportional to 80,763.24, 121,158.70 and 27,449.58 is: 41,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.24 : 121,158.70 = 27,449.58 : x
  2. Step 2: Convert to fraction form
    80,763.24/121,158.70 = 27,449.58/x
  3. Step 3: Cross multiply
    80,763.24x = 121,158.70 × 27,449.58
  4. Step 4: Simplify right side
    80,763.24x = 3,325,755,428.35
  5. Step 5: Solve for x
    x = 3,325,755,428.35/80,763.24
  6. Step 6: Final answer
    x = 41,179.07

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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.