Home / 81,934.85-122,975.54-41,981.09

Finding the Fourth Proportional to 81,934.85, 122,975.54 and 41,981.09

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Solution

The fourth proportional to 81,934.85, 122,975.54 and 41,981.09 is: 63,009.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,934.85 : 122,975.54 = 41,981.09 : x
  2. Step 2: Convert to fraction form
    81,934.85/122,975.54 = 41,981.09/x
  3. Step 3: Cross multiply
    81,934.85x = 122,975.54 × 41,981.09
  4. Step 4: Simplify right side
    81,934.85x = 5,162,647,467.50
  5. Step 5: Solve for x
    x = 5,162,647,467.50/81,934.85
  6. Step 6: Final answer
    x = 63,009.18

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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.