Home / 80,727.20-111,403.20-44,920.64

Finding the Fourth Proportional to 80,727.20, 111,403.20 and 44,920.64

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Solution

The fourth proportional to 80,727.20, 111,403.20 and 44,920.64 is: 61,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,727.20 : 111,403.20 = 44,920.64 : x
  2. Step 2: Convert to fraction form
    80,727.20/111,403.20 = 44,920.64/x
  3. Step 3: Cross multiply
    80,727.20x = 111,403.20 × 44,920.64
  4. Step 4: Simplify right side
    80,727.20x = 5,004,303,042.05
  5. Step 5: Solve for x
    x = 5,004,303,042.05/80,727.20
  6. Step 6: Final answer
    x = 61,990.30

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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.