Finding the Fourth Proportional to 68,834.70, 103,239.75 and 18,234.09
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Solution
The fourth proportional to 68,834.70, 103,239.75 and 18,234.09 is: 27,347.88
Step by Step Solution
- Step 1: Write the proportion equation
68,834.70 : 103,239.75 = 18,234.09 : x - Step 2: Convert to fraction form
68,834.70/103,239.75 = 18,234.09/x - Step 3: Cross multiply
68,834.70x = 103,239.75 × 18,234.09 - Step 4: Simplify right side
68,834.70x = 1,882,482,893.08 - Step 5: Solve for x
x = 1,882,482,893.08/68,834.70 - Step 6: Final answer
x = 27,347.88
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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.