Finding the Fourth Proportional to 99,821.28, 149,755.68 and 33,261.84
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Solution
The fourth proportional to 99,821.28, 149,755.68 and 33,261.84 is: 49,900.68
Step by Step Solution
- Step 1: Write the proportion equation
99,821.28 : 149,755.68 = 33,261.84 : x - Step 2: Convert to fraction form
99,821.28/149,755.68 = 33,261.84/x - Step 3: Cross multiply
99,821.28x = 149,755.68 × 33,261.84 - Step 4: Simplify right side
99,821.28x = 4,981,149,467.25 - Step 5: Solve for x
x = 4,981,149,467.25/99,821.28 - Step 6: Final answer
x = 49,900.68
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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.