Finding the Fourth Proportional to 80,568.26, 120,878.21 and 33,205.53
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Solution
The fourth proportional to 80,568.26, 120,878.21 and 33,205.53 is: 49,818.94
Step by Step Solution
- Step 1: Write the proportion equation
80,568.26 : 120,878.21 = 33,205.53 : x - Step 2: Convert to fraction form
80,568.26/120,878.21 = 33,205.53/x - Step 3: Cross multiply
80,568.26x = 120,878.21 × 33,205.53 - Step 4: Simplify right side
80,568.26x = 4,013,825,028.50 - Step 5: Solve for x
x = 4,013,825,028.50/80,568.26 - Step 6: Final answer
x = 49,818.94
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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.