Finding the Fourth Proportional to 81,880.80, 122,821.26 and 22,716.53
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Solution
The fourth proportional to 81,880.80, 122,821.26 and 22,716.53 is: 34,074.80
Step by Step Solution
- Step 1: Write the proportion equation
81,880.80 : 122,821.26 = 22,716.53 : x - Step 2: Convert to fraction form
81,880.80/122,821.26 = 22,716.53/x - Step 3: Cross multiply
81,880.80x = 122,821.26 × 22,716.53 - Step 4: Simplify right side
81,880.80x = 2,790,072,223.32 - Step 5: Solve for x
x = 2,790,072,223.32/81,880.80 - Step 6: Final answer
x = 34,074.80
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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.