Finding the Fourth Proportional to 66,945.21, 100,311.09 and 35,353.99
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Solution
The fourth proportional to 66,945.21, 100,311.09 and 35,353.99 is: 52,974.62
Step by Step Solution
- Step 1: Write the proportion equation
66,945.21 : 100,311.09 = 35,353.99 : x - Step 2: Convert to fraction form
66,945.21/100,311.09 = 35,353.99/x - Step 3: Cross multiply
66,945.21x = 100,311.09 × 35,353.99 - Step 4: Simplify right side
66,945.21x = 3,546,397,272.75 - Step 5: Solve for x
x = 3,546,397,272.75/66,945.21 - Step 6: Final answer
x = 52,974.62
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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.