Finding the Fourth Proportional to 80,481.68, 120,743.99 and 27,891.12
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Solution
The fourth proportional to 80,481.68, 120,743.99 and 27,891.12 is: 41,844.12
Step by Step Solution
- Step 1: Write the proportion equation
80,481.68 : 120,743.99 = 27,891.12 : x - Step 2: Convert to fraction form
80,481.68/120,743.99 = 27,891.12/x - Step 3: Cross multiply
80,481.68x = 120,743.99 × 27,891.12 - Step 4: Simplify right side
80,481.68x = 3,367,685,114.37 - Step 5: Solve for x
x = 3,367,685,114.37/80,481.68 - Step 6: Final answer
x = 41,844.12
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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.