Home / 45,446.55-68,138.19-20,132.33

Finding the Fourth Proportional to 45,446.55, 68,138.19 and 20,132.33

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Solution

The fourth proportional to 45,446.55, 68,138.19 and 20,132.33 is: 30,184.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,446.55 : 68,138.19 = 20,132.33 : x
  2. Step 2: Convert to fraction form
    45,446.55/68,138.19 = 20,132.33/x
  3. Step 3: Cross multiply
    45,446.55x = 68,138.19 × 20,132.33
  4. Step 4: Simplify right side
    45,446.55x = 1,371,780,185.99
  5. Step 5: Solve for x
    x = 1,371,780,185.99/45,446.55
  6. Step 6: Final answer
    x = 30,184.47

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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.