Home / 80,891.01-111,632.82-45,080.70

Finding the Fourth Proportional to 80,891.01, 111,632.82 and 45,080.70

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Solution

The fourth proportional to 80,891.01, 111,632.82 and 45,080.70 is: 62,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,891.01 : 111,632.82 = 45,080.70 : x
  2. Step 2: Convert to fraction form
    80,891.01/111,632.82 = 45,080.70/x
  3. Step 3: Cross multiply
    80,891.01x = 111,632.82 × 45,080.70
  4. Step 4: Simplify right side
    80,891.01x = 5,032,485,668.57
  5. Step 5: Solve for x
    x = 5,032,485,668.57/80,891.01
  6. Step 6: Final answer
    x = 62,213.16

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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.