Home / 45,015.44-67,517.67-18,716.76

Finding the Fourth Proportional to 45,015.44, 67,517.67 and 18,716.76

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Solution

The fourth proportional to 45,015.44, 67,517.67 and 18,716.76 is: 28,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,015.44 : 67,517.67 = 18,716.76 : x
  2. Step 2: Convert to fraction form
    45,015.44/67,517.67 = 18,716.76/x
  3. Step 3: Cross multiply
    45,015.44x = 67,517.67 × 18,716.76
  4. Step 4: Simplify right side
    45,015.44x = 1,263,712,025.15
  5. Step 5: Solve for x
    x = 1,263,712,025.15/45,015.44
  6. Step 6: Final answer
    x = 28,072.86

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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.