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Finding the Fourth Proportional to 45,379.44, 68,074.02 and 13,789.44

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Solution

The fourth proportional to 45,379.44, 68,074.02 and 13,789.44 is: 20,685.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,379.44 : 68,074.02 = 13,789.44 : x
  2. Step 2: Convert to fraction form
    45,379.44/68,074.02 = 13,789.44/x
  3. Step 3: Cross multiply
    45,379.44x = 68,074.02 × 13,789.44
  4. Step 4: Simplify right side
    45,379.44x = 938,702,614.35
  5. Step 5: Solve for x
    x = 938,702,614.35/45,379.44
  6. Step 6: Final answer
    x = 20,685.64

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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.