Finding the Fourth Proportional to 68,221.12, 102,351.12 and 49,519.84
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Solution
The fourth proportional to 68,221.12, 102,351.12 and 49,519.84 is: 74,293.87
Step by Step Solution
- Step 1: Write the proportion equation
68,221.12 : 102,351.12 = 49,519.84 : x - Step 2: Convert to fraction form
68,221.12/102,351.12 = 49,519.84/x - Step 3: Cross multiply
68,221.12x = 102,351.12 × 49,519.84 - Step 4: Simplify right side
68,221.12x = 5,068,411,086.22 - Step 5: Solve for x
x = 5,068,411,086.22/68,221.12 - Step 6: Final answer
x = 74,293.87
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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.