Home / 80,891.34-111,626.96-45,079.62

Finding the Fourth Proportional to 80,891.34, 111,626.96 and 45,079.62

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Solution

The fourth proportional to 80,891.34, 111,626.96 and 45,079.62 is: 62,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,891.34 : 111,626.96 = 45,079.62 : x
  2. Step 2: Convert to fraction form
    80,891.34/111,626.96 = 45,079.62/x
  3. Step 3: Cross multiply
    80,891.34x = 111,626.96 × 45,079.62
  4. Step 4: Simplify right side
    80,891.34x = 5,032,100,713.16
  5. Step 5: Solve for x
    x = 5,032,100,713.16/80,891.34
  6. Step 6: Final answer
    x = 62,208.15

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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.