Finding the Fourth Proportional to 81,456.82, 122,204.36 and 25,294.03
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Solution
The fourth proportional to 81,456.82, 122,204.36 and 25,294.03 is: 37,946.99
Step by Step Solution
- Step 1: Write the proportion equation
81,456.82 : 122,204.36 = 25,294.03 : x - Step 2: Convert to fraction form
81,456.82/122,204.36 = 25,294.03/x - Step 3: Cross multiply
81,456.82x = 122,204.36 × 25,294.03 - Step 4: Simplify right side
81,456.82x = 3,091,040,747.97 - Step 5: Solve for x
x = 3,091,040,747.97/81,456.82 - Step 6: Final answer
x = 37,946.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.