Finding the Fourth Proportional to 74,612.28, 111,914.64 and 27,861.60
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Solution
The fourth proportional to 74,612.28, 111,914.64 and 27,861.60 is: 41,790.99
Step by Step Solution
- Step 1: Write the proportion equation
74,612.28 : 111,914.64 = 27,861.60 : x - Step 2: Convert to fraction form
74,612.28/111,914.64 = 27,861.60/x - Step 3: Cross multiply
74,612.28x = 111,914.64 × 27,861.60 - Step 4: Simplify right side
74,612.28x = 3,118,120,933.82 - Step 5: Solve for x
x = 3,118,120,933.82/74,612.28 - Step 6: Final answer
x = 41,790.99
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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.