Finding the Fourth Proportional to 75,515.82, 104,172.57 and 45,286.62
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Solution
The fourth proportional to 75,515.82, 104,172.57 and 45,286.62 is: 62,471.99
Step by Step Solution
- Step 1: Write the proportion equation
75,515.82 : 104,172.57 = 45,286.62 : x - Step 2: Convert to fraction form
75,515.82/104,172.57 = 45,286.62/x - Step 3: Cross multiply
75,515.82x = 104,172.57 × 45,286.62 - Step 4: Simplify right side
75,515.82x = 4,717,623,592.01 - Step 5: Solve for x
x = 4,717,623,592.01/75,515.82 - Step 6: Final answer
x = 62,471.99
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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.