Finding the Fourth Proportional to 88,201.44, 121,717.68 and 47,915.28
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Solution
The fourth proportional to 88,201.44, 121,717.68 and 47,915.28 is: 66,122.92
Step by Step Solution
- Step 1: Write the proportion equation
88,201.44 : 121,717.68 = 47,915.28 : x - Step 2: Convert to fraction form
88,201.44/121,717.68 = 47,915.28/x - Step 3: Cross multiply
88,201.44x = 121,717.68 × 47,915.28 - Step 4: Simplify right side
88,201.44x = 5,832,136,718.15 - Step 5: Solve for x
x = 5,832,136,718.15/88,201.44 - Step 6: Final answer
x = 66,122.92
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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.