Home / 68,770.22-103,155.32-45,391.19

Finding the Fourth Proportional to 68,770.22, 103,155.32 and 45,391.19

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Solution

The fourth proportional to 68,770.22, 103,155.32 and 45,391.19 is: 68,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,770.22 : 103,155.32 = 45,391.19 : x
  2. Step 2: Convert to fraction form
    68,770.22/103,155.32 = 45,391.19/x
  3. Step 3: Cross multiply
    68,770.22x = 103,155.32 × 45,391.19
  4. Step 4: Simplify right side
    68,770.22x = 4,682,342,327.33
  5. Step 5: Solve for x
    x = 4,682,342,327.33/68,770.22
  6. Step 6: Final answer
    x = 68,086.78

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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.