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Finding the Fourth Proportional to 80,718.68, 111,391.84 and 44,908.72

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Solution

The fourth proportional to 80,718.68, 111,391.84 and 44,908.72 is: 61,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.68 : 111,391.84 = 44,908.72 : x
  2. Step 2: Convert to fraction form
    80,718.68/111,391.84 = 44,908.72/x
  3. Step 3: Cross multiply
    80,718.68x = 111,391.84 × 44,908.72
  4. Step 4: Simplify right side
    80,718.68x = 5,002,464,952.84
  5. Step 5: Solve for x
    x = 5,002,464,952.84/80,718.68
  6. Step 6: Final answer
    x = 61,974.07

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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.