Home / 80,662.20-120,993.56-28,059.16

Finding the Fourth Proportional to 80,662.20, 120,993.56 and 28,059.16

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Solution

The fourth proportional to 80,662.20, 120,993.56 and 28,059.16 is: 42,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,662.20 : 120,993.56 = 28,059.16 : x
  2. Step 2: Convert to fraction form
    80,662.20/120,993.56 = 28,059.16/x
  3. Step 3: Cross multiply
    80,662.20x = 120,993.56 × 28,059.16
  4. Step 4: Simplify right side
    80,662.20x = 3,394,977,659.01
  5. Step 5: Solve for x
    x = 3,394,977,659.01/80,662.20
  6. Step 6: Final answer
    x = 42,088.83

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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.