Finding the Fourth Proportional to 82,857.68, 124,269.12 and 26,702.84
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Solution
The fourth proportional to 82,857.68, 124,269.12 and 26,702.84 is: 40,048.65
Step by Step Solution
- Step 1: Write the proportion equation
82,857.68 : 124,269.12 = 26,702.84 : x - Step 2: Convert to fraction form
82,857.68/124,269.12 = 26,702.84/x - Step 3: Cross multiply
82,857.68x = 124,269.12 × 26,702.84 - Step 4: Simplify right side
82,857.68x = 3,318,338,428.30 - Step 5: Solve for x
x = 3,318,338,428.30/82,857.68 - Step 6: Final answer
x = 40,048.65
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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.