Finding the Fourth Proportional to 68,163.60, 102,245.40 and 57,277.20
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Solution
The fourth proportional to 68,163.60, 102,245.40 and 57,277.20 is: 85,915.80
Step by Step Solution
- Step 1: Write the proportion equation
68,163.60 : 102,245.40 = 57,277.20 : x - Step 2: Convert to fraction form
68,163.60/102,245.40 = 57,277.20/x - Step 3: Cross multiply
68,163.60x = 102,245.40 × 57,277.20 - Step 4: Simplify right side
68,163.60x = 5,856,330,224.88 - Step 5: Solve for x
x = 5,856,330,224.88/68,163.60 - Step 6: Final answer
x = 85,915.80
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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.