Finding the Fourth Proportional to 75,418.44, 104,078.67 and 41,430.03
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Solution
The fourth proportional to 75,418.44, 104,078.67 and 41,430.03 is: 57,174.12
Step by Step Solution
- Step 1: Write the proportion equation
75,418.44 : 104,078.67 = 41,430.03 : x - Step 2: Convert to fraction form
75,418.44/104,078.67 = 41,430.03/x - Step 3: Cross multiply
75,418.44x = 104,078.67 × 41,430.03 - Step 4: Simplify right side
75,418.44x = 4,311,982,693.29 - Step 5: Solve for x
x = 4,311,982,693.29/75,418.44 - Step 6: Final answer
x = 57,174.12
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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.