Finding the Fourth Proportional to 68,674.18, 103,027.22 and 21,286.75
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Solution
The fourth proportional to 68,674.18, 103,027.22 and 21,286.75 is: 31,935.07
Step by Step Solution
- Step 1: Write the proportion equation
68,674.18 : 103,027.22 = 21,286.75 : x - Step 2: Convert to fraction form
68,674.18/103,027.22 = 21,286.75/x - Step 3: Cross multiply
68,674.18x = 103,027.22 × 21,286.75 - Step 4: Simplify right side
68,674.18x = 2,193,114,704.07 - Step 5: Solve for x
x = 2,193,114,704.07/68,674.18 - Step 6: Final answer
x = 31,935.07
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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.