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Finding the Fourth Proportional to 45,668.22, 68,500.71 and 12,393.42

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Solution

The fourth proportional to 45,668.22, 68,500.71 and 12,393.42 is: 18,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,668.22 : 68,500.71 = 12,393.42 : x
  2. Step 2: Convert to fraction form
    45,668.22/68,500.71 = 12,393.42/x
  3. Step 3: Cross multiply
    45,668.22x = 68,500.71 × 12,393.42
  4. Step 4: Simplify right side
    45,668.22x = 848,958,069.33
  5. Step 5: Solve for x
    x = 848,958,069.33/45,668.22
  6. Step 6: Final answer
    x = 18,589.69

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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.