Finding the Fourth Proportional to 68,274.28, 102,235.74 and 54,884.20
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Solution
The fourth proportional to 68,274.28, 102,235.74 and 54,884.20 is: 82,185.07
Step by Step Solution
- Step 1: Write the proportion equation
68,274.28 : 102,235.74 = 54,884.20 : x - Step 2: Convert to fraction form
68,274.28/102,235.74 = 54,884.20/x - Step 3: Cross multiply
68,274.28x = 102,235.74 × 54,884.20 - Step 4: Simplify right side
68,274.28x = 5,611,126,801.31 - Step 5: Solve for x
x = 5,611,126,801.31/68,274.28 - Step 6: Final answer
x = 82,185.07
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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.