Finding the Fourth Proportional to 87,804.63, 121,170.39 and 47,518.68
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Solution
The fourth proportional to 87,804.63, 121,170.39 and 47,518.68 is: 65,575.78
Step by Step Solution
- Step 1: Write the proportion equation
87,804.63 : 121,170.39 = 47,518.68 : x - Step 2: Convert to fraction form
87,804.63/121,170.39 = 47,518.68/x - Step 3: Cross multiply
87,804.63x = 121,170.39 × 47,518.68 - Step 4: Simplify right side
87,804.63x = 5,757,857,534.30 - Step 5: Solve for x
x = 5,757,857,534.30/87,804.63 - Step 6: Final answer
x = 65,575.78
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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.