Finding the Fourth Proportional to 87,636.44, 120,949.94 and 49,403.23
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Solution
The fourth proportional to 87,636.44, 120,949.94 and 49,403.23 is: 68,183.03
Step by Step Solution
- Step 1: Write the proportion equation
87,636.44 : 120,949.94 = 49,403.23 : x - Step 2: Convert to fraction form
87,636.44/120,949.94 = 49,403.23/x - Step 3: Cross multiply
87,636.44x = 120,949.94 × 49,403.23 - Step 4: Simplify right side
87,636.44x = 5,975,317,704.31 - Step 5: Solve for x
x = 5,975,317,704.31/87,636.44 - Step 6: Final answer
x = 68,183.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.