Finding the Fourth Proportional to 75,517.44, 104,213.12 and 43,685.60
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Solution
The fourth proportional to 75,517.44, 104,213.12 and 43,685.60 is: 60,285.58
Step by Step Solution
- Step 1: Write the proportion equation
75,517.44 : 104,213.12 = 43,685.60 : x - Step 2: Convert to fraction form
75,517.44/104,213.12 = 43,685.60/x - Step 3: Cross multiply
75,517.44x = 104,213.12 × 43,685.60 - Step 4: Simplify right side
75,517.44x = 4,552,612,675.07 - Step 5: Solve for x
x = 4,552,612,675.07/75,517.44 - Step 6: Final answer
x = 60,285.58
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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.