Finding the Fourth Proportional to 68,138.20, 102,207.30 and 44,518.60
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Solution
The fourth proportional to 68,138.20, 102,207.30 and 44,518.60 is: 66,777.90
Step by Step Solution
- Step 1: Write the proportion equation
68,138.20 : 102,207.30 = 44,518.60 : x - Step 2: Convert to fraction form
68,138.20/102,207.30 = 44,518.60/x - Step 3: Cross multiply
68,138.20x = 102,207.30 × 44,518.60 - Step 4: Simplify right side
68,138.20x = 4,550,125,905.78 - Step 5: Solve for x
x = 4,550,125,905.78/68,138.20 - Step 6: Final answer
x = 66,777.90
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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.