Finding the Fourth Proportional to 76,864.05, 106,121.73 and 48,222.96
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Solution
The fourth proportional to 76,864.05, 106,121.73 and 48,222.96 is: 66,578.64
Step by Step Solution
- Step 1: Write the proportion equation
76,864.05 : 106,121.73 = 48,222.96 : x - Step 2: Convert to fraction form
76,864.05/106,121.73 = 48,222.96/x - Step 3: Cross multiply
76,864.05x = 106,121.73 × 48,222.96 - Step 4: Simplify right side
76,864.05x = 5,117,503,940.92 - Step 5: Solve for x
x = 5,117,503,940.92/76,864.05 - Step 6: Final answer
x = 66,578.64
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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.