Home / 45,198.05-67,810.33-20,232.54

Finding the Fourth Proportional to 45,198.05, 67,810.33 and 20,232.54

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Solution

The fourth proportional to 45,198.05, 67,810.33 and 20,232.54 is: 30,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,198.05 : 67,810.33 = 20,232.54 : x
  2. Step 2: Convert to fraction form
    45,198.05/67,810.33 = 20,232.54/x
  3. Step 3: Cross multiply
    45,198.05x = 67,810.33 × 20,232.54
  4. Step 4: Simplify right side
    45,198.05x = 1,371,975,214.14
  5. Step 5: Solve for x
    x = 1,371,975,214.14/45,198.05
  6. Step 6: Final answer
    x = 30,354.74

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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.