Finding the Fourth Proportional to 80,197.57, 120,241.68 and 40,678.48
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Solution
The fourth proportional to 80,197.57, 120,241.68 and 40,678.48 is: 60,989.99
Step by Step Solution
- Step 1: Write the proportion equation
80,197.57 : 120,241.68 = 40,678.48 : x - Step 2: Convert to fraction form
80,197.57/120,241.68 = 40,678.48/x - Step 3: Cross multiply
80,197.57x = 120,241.68 × 40,678.48 - Step 4: Simplify right side
80,197.57x = 4,891,249,001.62 - Step 5: Solve for x
x = 4,891,249,001.62/80,197.57 - Step 6: Final answer
x = 60,989.99
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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.