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Finding the Fourth Proportional to 45,367.89, 68,007.48 and 20,414.22

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Solution

The fourth proportional to 45,367.89, 68,007.48 and 20,414.22 is: 30,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,367.89 : 68,007.48 = 20,414.22 : x
  2. Step 2: Convert to fraction form
    45,367.89/68,007.48 = 20,414.22/x
  3. Step 3: Cross multiply
    45,367.89x = 68,007.48 × 20,414.22
  4. Step 4: Simplify right side
    45,367.89x = 1,388,319,658.37
  5. Step 5: Solve for x
    x = 1,388,319,658.37/45,367.89
  6. Step 6: Final answer
    x = 30,601.37

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1.5x scale

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.