Finding the Fourth Proportional to 79,876.50, 119,814.76 and 27,286.44
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Solution
The fourth proportional to 79,876.50, 119,814.76 and 27,286.44 is: 40,929.66
Step by Step Solution
- Step 1: Write the proportion equation
79,876.50 : 119,814.76 = 27,286.44 : x - Step 2: Convert to fraction form
79,876.50/119,814.76 = 27,286.44/x - Step 3: Cross multiply
79,876.50x = 119,814.76 × 27,286.44 - Step 4: Simplify right side
79,876.50x = 3,269,318,259.85 - Step 5: Solve for x
x = 3,269,318,259.85/79,876.50 - Step 6: Final answer
x = 40,929.66
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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.