Home / 80,246.28-120,295.68-27,643.32

Finding the Fourth Proportional to 80,246.28, 120,295.68 and 27,643.32

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Solution

The fourth proportional to 80,246.28, 120,295.68 and 27,643.32 is: 41,439.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,246.28 : 120,295.68 = 27,643.32 : x
  2. Step 2: Convert to fraction form
    80,246.28/120,295.68 = 27,643.32/x
  3. Step 3: Cross multiply
    80,246.28x = 120,295.68 × 27,643.32
  4. Step 4: Simplify right side
    80,246.28x = 3,325,371,976.86
  5. Step 5: Solve for x
    x = 3,325,371,976.86/80,246.28
  6. Step 6: Final answer
    x = 41,439.58

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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.