Finding the Fourth Proportional to 79,839.70, 119,694.59 and 29,891.81
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Solution
The fourth proportional to 79,839.70, 119,694.59 and 29,891.81 is: 44,813.39
Step by Step Solution
- Step 1: Write the proportion equation
79,839.70 : 119,694.59 = 29,891.81 : x - Step 2: Convert to fraction form
79,839.70/119,694.59 = 29,891.81/x - Step 3: Cross multiply
79,839.70x = 119,694.59 × 29,891.81 - Step 4: Simplify right side
79,839.70x = 3,577,887,942.31 - Step 5: Solve for x
x = 3,577,887,942.31/79,839.70 - Step 6: Final answer
x = 44,813.39
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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.