Home / 80,781.36-111,243.06-62,846.16

Finding the Fourth Proportional to 80,781.36, 111,243.06 and 62,846.16

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Solution

The fourth proportional to 80,781.36, 111,243.06 and 62,846.16 is: 86,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,781.36 : 111,243.06 = 62,846.16 : x
  2. Step 2: Convert to fraction form
    80,781.36/111,243.06 = 62,846.16/x
  3. Step 3: Cross multiply
    80,781.36x = 111,243.06 × 62,846.16
  4. Step 4: Simplify right side
    80,781.36x = 6,991,199,147.65
  5. Step 5: Solve for x
    x = 6,991,199,147.65/80,781.36
  6. Step 6: Final answer
    x = 86,544.71

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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.