Finding the Fourth Proportional to 80,891.75, 121,343.76 and 27,567.15
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Solution
The fourth proportional to 80,891.75, 121,343.76 and 27,567.15 is: 41,352.82
Step by Step Solution
- Step 1: Write the proportion equation
80,891.75 : 121,343.76 = 27,567.15 : x - Step 2: Convert to fraction form
80,891.75/121,343.76 = 27,567.15/x - Step 3: Cross multiply
80,891.75x = 121,343.76 × 27,567.15 - Step 4: Simplify right side
80,891.75x = 3,345,101,633.48 - Step 5: Solve for x
x = 3,345,101,633.48/80,891.75 - Step 6: Final answer
x = 41,352.82
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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.