Home / 78,078.26-117,121.68-24,766.40

Finding the Fourth Proportional to 78,078.26, 117,121.68 and 24,766.40

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Solution

The fourth proportional to 78,078.26, 117,121.68 and 24,766.40 is: 37,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,078.26 : 117,121.68 = 24,766.40 : x
  2. Step 2: Convert to fraction form
    78,078.26/117,121.68 = 24,766.40/x
  3. Step 3: Cross multiply
    78,078.26x = 117,121.68 × 24,766.40
  4. Step 4: Simplify right side
    78,078.26x = 2,900,682,668.36
  5. Step 5: Solve for x
    x = 2,900,682,668.36/78,078.26
  6. Step 6: Final answer
    x = 37,150.96

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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.