Finding the Fourth Proportional to 71,563.80, 107,313.30 and 27,175.80
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Solution
The fourth proportional to 71,563.80, 107,313.30 and 27,175.80 is: 40,751.40
Step by Step Solution
- Step 1: Write the proportion equation
71,563.80 : 107,313.30 = 27,175.80 : x - Step 2: Convert to fraction form
71,563.80/107,313.30 = 27,175.80/x - Step 3: Cross multiply
71,563.80x = 107,313.30 × 27,175.80 - Step 4: Simplify right side
71,563.80x = 2,916,324,778.14 - Step 5: Solve for x
x = 2,916,324,778.14/71,563.80 - Step 6: Final answer
x = 40,751.40
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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.