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Finding the Fourth Proportional to 45,015.78, 67,524.78 and 15,433.44

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Solution

The fourth proportional to 45,015.78, 67,524.78 and 15,433.44 is: 23,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,015.78 : 67,524.78 = 15,433.44 : x
  2. Step 2: Convert to fraction form
    45,015.78/67,524.78 = 15,433.44/x
  3. Step 3: Cross multiply
    45,015.78x = 67,524.78 × 15,433.44
  4. Step 4: Simplify right side
    45,015.78x = 1,042,139,640.64
  5. Step 5: Solve for x
    x = 1,042,139,640.64/45,015.78
  6. Step 6: Final answer
    x = 23,150.54

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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.