Finding the Fourth Proportional to 87,817.67, 131,731.18 and 27,850.88
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Solution
The fourth proportional to 87,817.67, 131,731.18 and 27,850.88 is: 41,777.80
Step by Step Solution
- Step 1: Write the proportion equation
87,817.67 : 131,731.18 = 27,850.88 : x - Step 2: Convert to fraction form
87,817.67/131,731.18 = 27,850.88/x - Step 3: Cross multiply
87,817.67x = 131,731.18 × 27,850.88 - Step 4: Simplify right side
87,817.67x = 3,668,829,286.44 - Step 5: Solve for x
x = 3,668,829,286.44/87,817.67 - Step 6: Final answer
x = 41,777.80
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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.