Finding the Fourth Proportional to 87,716.96, 121,049.14 and 47,430.44
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Solution
The fourth proportional to 87,716.96, 121,049.14 and 47,430.44 is: 65,453.86
Step by Step Solution
- Step 1: Write the proportion equation
87,716.96 : 121,049.14 = 47,430.44 : x - Step 2: Convert to fraction form
87,716.96/121,049.14 = 47,430.44/x - Step 3: Cross multiply
87,716.96x = 121,049.14 × 47,430.44 - Step 4: Simplify right side
87,716.96x = 5,741,413,971.82 - Step 5: Solve for x
x = 5,741,413,971.82/87,716.96 - Step 6: Final answer
x = 65,453.86
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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.