Home / 78,716.52-117,882.41-41,308.29

Finding the Fourth Proportional to 78,716.52, 117,882.41 and 41,308.29

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Solution

The fourth proportional to 78,716.52, 117,882.41 and 41,308.29 is: 61,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716.52 : 117,882.41 = 41,308.29 : x
  2. Step 2: Convert to fraction form
    78,716.52/117,882.41 = 41,308.29/x
  3. Step 3: Cross multiply
    78,716.52x = 117,882.41 × 41,308.29
  4. Step 4: Simplify right side
    78,716.52x = 4,869,520,571.64
  5. Step 5: Solve for x
    x = 4,869,520,571.64/78,716.52
  6. Step 6: Final answer
    x = 61,861.48

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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.