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Finding the Fourth Proportional to 45,193.78, 67,797.02 and 18,892.54

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Solution

The fourth proportional to 45,193.78, 67,797.02 and 18,892.54 is: 28,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,193.78 : 67,797.02 = 18,892.54 : x
  2. Step 2: Convert to fraction form
    45,193.78/67,797.02 = 18,892.54/x
  3. Step 3: Cross multiply
    45,193.78x = 67,797.02 × 18,892.54
  4. Step 4: Simplify right side
    45,193.78x = 1,280,857,912.23
  5. Step 5: Solve for x
    x = 1,280,857,912.23/45,193.78
  6. Step 6: Final answer
    x = 28,341.46

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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.