Home / 81,650.69-122,476.04-25,495.61

Finding the Fourth Proportional to 81,650.69, 122,476.04 and 25,495.61

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Solution

The fourth proportional to 81,650.69, 122,476.04 and 25,495.61 is: 38,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650.69 : 122,476.04 = 25,495.61 : x
  2. Step 2: Convert to fraction form
    81,650.69/122,476.04 = 25,495.61/x
  3. Step 3: Cross multiply
    81,650.69x = 122,476.04 × 25,495.61
  4. Step 4: Simplify right side
    81,650.69x = 3,122,601,720.11
  5. Step 5: Solve for x
    x = 3,122,601,720.11/81,650.69
  6. Step 6: Final answer
    x = 38,243.42

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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.