Finding the Fourth Proportional to 87,912.82, 121,319.04 and 50,186.98
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Solution
The fourth proportional to 87,912.82, 121,319.04 and 50,186.98 is: 69,257.66
Step by Step Solution
- Step 1: Write the proportion equation
87,912.82 : 121,319.04 = 50,186.98 : x - Step 2: Convert to fraction form
87,912.82/121,319.04 = 50,186.98/x - Step 3: Cross multiply
87,912.82x = 121,319.04 × 50,186.98 - Step 4: Simplify right side
87,912.82x = 6,088,636,234.10 - Step 5: Solve for x
x = 6,088,636,234.10/87,912.82 - Step 6: Final answer
x = 69,257.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.