Finding the Fourth Proportional to 71,942.80, 107,881.80 and 27,554.80
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Solution
The fourth proportional to 71,942.80, 107,881.80 and 27,554.80 is: 41,319.79
Step by Step Solution
- Step 1: Write the proportion equation
71,942.80 : 107,881.80 = 27,554.80 : x - Step 2: Convert to fraction form
71,942.80/107,881.80 = 27,554.80/x - Step 3: Cross multiply
71,942.80x = 107,881.80 × 27,554.80 - Step 4: Simplify right side
71,942.80x = 2,972,661,422.64 - Step 5: Solve for x
x = 2,972,661,422.64/71,942.80 - Step 6: Final answer
x = 41,319.79
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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.