Home / 80,329.32-120,451.86-27,726.30

Finding the Fourth Proportional to 80,329.32, 120,451.86 and 27,726.30

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Solution

The fourth proportional to 80,329.32, 120,451.86 and 27,726.30 is: 41,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,329.32 : 120,451.86 = 27,726.30 : x
  2. Step 2: Convert to fraction form
    80,329.32/120,451.86 = 27,726.30/x
  3. Step 3: Cross multiply
    80,329.32x = 120,451.86 × 27,726.30
  4. Step 4: Simplify right side
    80,329.32x = 3,339,684,405.92
  5. Step 5: Solve for x
    x = 3,339,684,405.92/80,329.32
  6. Step 6: Final answer
    x = 41,574.91

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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.