Finding the Fourth Proportional to 75,699.26, 104,469.65 and 42,165.26
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Solution
The fourth proportional to 75,699.26, 104,469.65 and 42,165.26 is: 58,190.65
Step by Step Solution
- Step 1: Write the proportion equation
75,699.26 : 104,469.65 = 42,165.26 : x - Step 2: Convert to fraction form
75,699.26/104,469.65 = 42,165.26/x - Step 3: Cross multiply
75,699.26x = 104,469.65 × 42,165.26 - Step 4: Simplify right side
75,699.26x = 4,404,989,221.18 - Step 5: Solve for x
x = 4,404,989,221.18/75,699.26 - Step 6: Final answer
x = 58,190.65
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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.