Finding the Fourth Proportional to 87,736.28, 121,075.72 and 47,450.08
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Solution
The fourth proportional to 87,736.28, 121,075.72 and 47,450.08 is: 65,480.92
Step by Step Solution
- Step 1: Write the proportion equation
87,736.28 : 121,075.72 = 47,450.08 : x - Step 2: Convert to fraction form
87,736.28/121,075.72 = 47,450.08/x - Step 3: Cross multiply
87,736.28x = 121,075.72 × 47,450.08 - Step 4: Simplify right side
87,736.28x = 5,745,052,600.06 - Step 5: Solve for x
x = 5,745,052,600.06/87,736.28 - Step 6: Final answer
x = 65,480.92
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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.