Finding the Fourth Proportional to 79,853.70, 119,760.09 and 23,680.68
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Solution
The fourth proportional to 79,853.70, 119,760.09 and 23,680.68 is: 35,514.95
Step by Step Solution
- Step 1: Write the proportion equation
79,853.70 : 119,760.09 = 23,680.68 : x - Step 2: Convert to fraction form
79,853.70/119,760.09 = 23,680.68/x - Step 3: Cross multiply
79,853.70x = 119,760.09 × 23,680.68 - Step 4: Simplify right side
79,853.70x = 2,836,000,368.06 - Step 5: Solve for x
x = 2,836,000,368.06/79,853.70 - Step 6: Final answer
x = 35,514.95
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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.