Finding the Fourth Proportional to 87,736.79, 121,076.42 and 47,450.60
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Solution
The fourth proportional to 87,736.79, 121,076.42 and 47,450.60 is: 65,481.63
Step by Step Solution
- Step 1: Write the proportion equation
87,736.79 : 121,076.42 = 47,450.60 : x - Step 2: Convert to fraction form
87,736.79/121,076.42 = 47,450.60/x - Step 3: Cross multiply
87,736.79x = 121,076.42 × 47,450.60 - Step 4: Simplify right side
87,736.79x = 5,745,147,932.22 - Step 5: Solve for x
x = 5,745,147,932.22/87,736.79 - Step 6: Final answer
x = 65,481.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.