Finding the Fourth Proportional to 87,578.15, 120,850.99 and 49,336.02
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Solution
The fourth proportional to 87,578.15, 120,850.99 and 49,336.02 is: 68,079.85
Step by Step Solution
- Step 1: Write the proportion equation
87,578.15 : 120,850.99 = 49,336.02 : x - Step 2: Convert to fraction form
87,578.15/120,850.99 = 49,336.02/x - Step 3: Cross multiply
87,578.15x = 120,850.99 × 49,336.02 - Step 4: Simplify right side
87,578.15x = 5,962,306,736.32 - Step 5: Solve for x
x = 5,962,306,736.32/87,578.15 - Step 6: Final answer
x = 68,079.85
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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.