Finding the Fourth Proportional to 87,806.63, 121,173.44 and 47,520.38
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Solution
The fourth proportional to 87,806.63, 121,173.44 and 47,520.38 is: 65,578.28
Step by Step Solution
- Step 1: Write the proportion equation
87,806.63 : 121,173.44 = 47,520.38 : x - Step 2: Convert to fraction form
87,806.63/121,173.44 = 47,520.38/x - Step 3: Cross multiply
87,806.63x = 121,173.44 × 47,520.38 - Step 4: Simplify right side
87,806.63x = 5,758,207,071.24 - Step 5: Solve for x
x = 5,758,207,071.24/87,806.63 - Step 6: Final answer
x = 65,578.28
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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.