Home / 80,449.08-120,712.50-33,099.12

Finding the Fourth Proportional to 80,449.08, 120,712.50 and 33,099.12

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Solution

The fourth proportional to 80,449.08, 120,712.50 and 33,099.12 is: 49,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449.08 : 120,712.50 = 33,099.12 : x
  2. Step 2: Convert to fraction form
    80,449.08/120,712.50 = 33,099.12/x
  3. Step 3: Cross multiply
    80,449.08x = 120,712.50 × 33,099.12
  4. Step 4: Simplify right side
    80,449.08x = 3,995,477,523.00
  5. Step 5: Solve for x
    x = 3,995,477,523.00/80,449.08
  6. Step 6: Final answer
    x = 49,664.68

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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.