Finding the Fourth Proportional to 87,449.41, 120,679.63 and 49,723.66
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Solution
The fourth proportional to 87,449.41, 120,679.63 and 49,723.66 is: 68,618.33
Step by Step Solution
- Step 1: Write the proportion equation
87,449.41 : 120,679.63 = 49,723.66 : x - Step 2: Convert to fraction form
87,449.41/120,679.63 = 49,723.66/x - Step 3: Cross multiply
87,449.41x = 120,679.63 × 49,723.66 - Step 4: Simplify right side
87,449.41x = 6,000,632,891.05 - Step 5: Solve for x
x = 6,000,632,891.05/87,449.41 - Step 6: Final answer
x = 68,618.33
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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.