Finding the Fourth Proportional to 79,836.20, 119,754.28 and 27,245.68
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Solution
The fourth proportional to 79,836.20, 119,754.28 and 27,245.68 is: 40,868.51
Step by Step Solution
- Step 1: Write the proportion equation
79,836.20 : 119,754.28 = 27,245.68 : x - Step 2: Convert to fraction form
79,836.20/119,754.28 = 27,245.68/x - Step 3: Cross multiply
79,836.20x = 119,754.28 × 27,245.68 - Step 4: Simplify right side
79,836.20x = 3,262,786,791.51 - Step 5: Solve for x
x = 3,262,786,791.51/79,836.20 - Step 6: Final answer
x = 40,868.51
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1.5x scale
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.