Home / 80,718.12-111,358.80-52,034.40

Finding the Fourth Proportional to 80,718.12, 111,358.80 and 52,034.40

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Solution

The fourth proportional to 80,718.12, 111,358.80 and 52,034.40 is: 71,786.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.12 : 111,358.80 = 52,034.40 : x
  2. Step 2: Convert to fraction form
    80,718.12/111,358.80 = 52,034.40/x
  3. Step 3: Cross multiply
    80,718.12x = 111,358.80 × 52,034.40
  4. Step 4: Simplify right side
    80,718.12x = 5,794,488,342.72
  5. Step 5: Solve for x
    x = 5,794,488,342.72/80,718.12
  6. Step 6: Final answer
    x = 71,786.71

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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.