Finding the Fourth Proportional to 71,424.11, 107,137.08 and 49,231.53
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Solution
The fourth proportional to 71,424.11, 107,137.08 and 49,231.53 is: 73,847.93
Step by Step Solution
- Step 1: Write the proportion equation
71,424.11 : 107,137.08 = 49,231.53 : x - Step 2: Convert to fraction form
71,424.11/107,137.08 = 49,231.53/x - Step 3: Cross multiply
71,424.11x = 107,137.08 × 49,231.53 - Step 4: Simplify right side
71,424.11x = 5,274,522,368.13 - Step 5: Solve for x
x = 5,274,522,368.13/71,424.11 - Step 6: Final answer
x = 73,847.93
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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.