Home / 81,806.26-122,643.07-36,794.65

Finding the Fourth Proportional to 81,806.26, 122,643.07 and 36,794.65

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Solution

The fourth proportional to 81,806.26, 122,643.07 and 36,794.65 is: 55,162.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,806.26 : 122,643.07 = 36,794.65 : x
  2. Step 2: Convert to fraction form
    81,806.26/122,643.07 = 36,794.65/x
  3. Step 3: Cross multiply
    81,806.26x = 122,643.07 × 36,794.65
  4. Step 4: Simplify right side
    81,806.26x = 4,512,608,835.58
  5. Step 5: Solve for x
    x = 4,512,608,835.58/81,806.26
  6. Step 6: Final answer
    x = 55,162.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.