Finding the Fourth Proportional to 80,585.44, 120,891.12 and 33,851.68
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Solution
The fourth proportional to 80,585.44, 120,891.12 and 33,851.68 is: 50,782.96
Step by Step Solution
- Step 1: Write the proportion equation
80,585.44 : 120,891.12 = 33,851.68 : x - Step 2: Convert to fraction form
80,585.44/120,891.12 = 33,851.68/x - Step 3: Cross multiply
80,585.44x = 120,891.12 × 33,851.68 - Step 4: Simplify right side
80,585.44x = 4,092,367,509.08 - Step 5: Solve for x
x = 4,092,367,509.08/80,585.44 - Step 6: Final answer
x = 50,782.96
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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.