Finding the Fourth Proportional to 87,821.10, 121,192.98 and 47,534.82
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Solution
The fourth proportional to 87,821.10, 121,192.98 and 47,534.82 is: 65,597.98
Step by Step Solution
- Step 1: Write the proportion equation
87,821.10 : 121,192.98 = 47,534.82 : x - Step 2: Convert to fraction form
87,821.10/121,192.98 = 47,534.82/x - Step 3: Cross multiply
87,821.10x = 121,192.98 × 47,534.82 - Step 4: Simplify right side
87,821.10x = 5,760,886,489.56 - Step 5: Solve for x
x = 5,760,886,489.56/87,821.10 - Step 6: Final answer
x = 65,597.98
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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.