Finding the Fourth Proportional to 75,728.48, 104,505.36 and 43,915.84
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Solution
The fourth proportional to 75,728.48, 104,505.36 and 43,915.84 is: 60,603.89
Step by Step Solution
- Step 1: Write the proportion equation
75,728.48 : 104,505.36 = 43,915.84 : x - Step 2: Convert to fraction form
75,728.48/104,505.36 = 43,915.84/x - Step 3: Cross multiply
75,728.48x = 104,505.36 × 43,915.84 - Step 4: Simplify right side
75,728.48x = 4,589,440,668.90 - Step 5: Solve for x
x = 4,589,440,668.90/75,728.48 - Step 6: Final answer
x = 60,603.89
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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.