Finding the Fourth Proportional to 75,021.54, 103,480.92 and 48,121.44
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Solution
The fourth proportional to 75,021.54, 103,480.92 and 48,121.44 is: 66,376.28
Step by Step Solution
- Step 1: Write the proportion equation
75,021.54 : 103,480.92 = 48,121.44 : x - Step 2: Convert to fraction form
75,021.54/103,480.92 = 48,121.44/x - Step 3: Cross multiply
75,021.54x = 103,480.92 × 48,121.44 - Step 4: Simplify right side
75,021.54x = 4,979,650,882.92 - Step 5: Solve for x
x = 4,979,650,882.92/75,021.54 - Step 6: Final answer
x = 66,376.28
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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.