Home / 80,690.06-111,350.69-44,879.30

Finding the Fourth Proportional to 80,690.06, 111,350.69 and 44,879.30

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Solution

The fourth proportional to 80,690.06, 111,350.69 and 44,879.30 is: 61,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,690.06 : 111,350.69 = 44,879.30 : x
  2. Step 2: Convert to fraction form
    80,690.06/111,350.69 = 44,879.30/x
  3. Step 3: Cross multiply
    80,690.06x = 111,350.69 × 44,879.30
  4. Step 4: Simplify right side
    80,690.06x = 4,997,340,797.32
  5. Step 5: Solve for x
    x = 4,997,340,797.32/80,690.06
  6. Step 6: Final answer
    x = 61,932.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.