Finding the Fourth Proportional to 88,381.82, 121,969.47 and 48,098.18
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Solution
The fourth proportional to 88,381.82, 121,969.47 and 48,098.18 is: 66,376.88
Step by Step Solution
- Step 1: Write the proportion equation
88,381.82 : 121,969.47 = 48,098.18 : x - Step 2: Convert to fraction form
88,381.82/121,969.47 = 48,098.18/x - Step 3: Cross multiply
88,381.82x = 121,969.47 × 48,098.18 - Step 4: Simplify right side
88,381.82x = 5,866,508,912.72 - Step 5: Solve for x
x = 5,866,508,912.72/88,381.82 - Step 6: Final answer
x = 66,376.88
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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.