Finding the Fourth Proportional to 87,846.13, 121,231.11 and 49,613.73
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Solution
The fourth proportional to 87,846.13, 121,231.11 and 49,613.73 is: 68,468.90
Step by Step Solution
- Step 1: Write the proportion equation
87,846.13 : 121,231.11 = 49,613.73 : x - Step 2: Convert to fraction form
87,846.13/121,231.11 = 49,613.73/x - Step 3: Cross multiply
87,846.13x = 121,231.11 × 49,613.73 - Step 4: Simplify right side
87,846.13x = 6,014,727,559.14 - Step 5: Solve for x
x = 6,014,727,559.14/87,846.13 - Step 6: Final answer
x = 68,468.90
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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.