Finding the Fourth Proportional to 68,213.54, 102,319.60 and 26,660.18
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Solution
The fourth proportional to 68,213.54, 102,319.60 and 26,660.18 is: 39,989.99
Step by Step Solution
- Step 1: Write the proportion equation
68,213.54 : 102,319.60 = 26,660.18 : x - Step 2: Convert to fraction form
68,213.54/102,319.60 = 26,660.18/x - Step 3: Cross multiply
68,213.54x = 102,319.60 × 26,660.18 - Step 4: Simplify right side
68,213.54x = 2,727,858,953.53 - Step 5: Solve for x
x = 2,727,858,953.53/68,213.54 - Step 6: Final answer
x = 39,989.99
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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.