Home / 45,511.92-68,214.23-20,522.71

Finding the Fourth Proportional to 45,511.92, 68,214.23 and 20,522.71

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Solution

The fourth proportional to 45,511.92, 68,214.23 and 20,522.71 is: 30,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,511.92 : 68,214.23 = 20,522.71 : x
  2. Step 2: Convert to fraction form
    45,511.92/68,214.23 = 20,522.71/x
  3. Step 3: Cross multiply
    45,511.92x = 68,214.23 × 20,522.71
  4. Step 4: Simplify right side
    45,511.92x = 1,399,940,860.16
  5. Step 5: Solve for x
    x = 1,399,940,860.16/45,511.92
  6. Step 6: Final answer
    x = 30,759.87

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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.