Finding the Fourth Proportional to 71,761.40, 107,629.14 and 27,378.26
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Solution
The fourth proportional to 71,761.40, 107,629.14 and 27,378.26 is: 41,062.45
Step by Step Solution
- Step 1: Write the proportion equation
71,761.40 : 107,629.14 = 27,378.26 : x - Step 2: Convert to fraction form
71,761.40/107,629.14 = 27,378.26/x - Step 3: Cross multiply
71,761.40x = 107,629.14 × 27,378.26 - Step 4: Simplify right side
71,761.40x = 2,946,698,578.50 - Step 5: Solve for x
x = 2,946,698,578.50/71,761.40 - Step 6: Final answer
x = 41,062.45
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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.