Finding the Fourth Proportional to 71,993.80, 107,958.30 and 27,605.80
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Solution
The fourth proportional to 71,993.80, 107,958.30 and 27,605.80 is: 41,396.28
Step by Step Solution
- Step 1: Write the proportion equation
71,993.80 : 107,958.30 = 27,605.80 : x - Step 2: Convert to fraction form
71,993.80/107,958.30 = 27,605.80/x - Step 3: Cross multiply
71,993.80x = 107,958.30 × 27,605.80 - Step 4: Simplify right side
71,993.80x = 2,980,275,238.14 - Step 5: Solve for x
x = 2,980,275,238.14/71,993.80 - Step 6: Final answer
x = 41,396.28
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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.