Finding the Fourth Proportional to 82,124.20, 123,186.05 and 19,794.70
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Solution
The fourth proportional to 82,124.20, 123,186.05 and 19,794.70 is: 29,691.99
Step by Step Solution
- Step 1: Write the proportion equation
82,124.20 : 123,186.05 = 19,794.70 : x - Step 2: Convert to fraction form
82,124.20/123,186.05 = 19,794.70/x - Step 3: Cross multiply
82,124.20x = 123,186.05 × 19,794.70 - Step 4: Simplify right side
82,124.20x = 2,438,430,903.94 - Step 5: Solve for x
x = 2,438,430,903.94/82,124.20 - Step 6: Final answer
x = 29,691.99
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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.