Finding the Fourth Proportional to 82,561.68, 123,837.66 and 27,157.68
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Solution
The fourth proportional to 82,561.68, 123,837.66 and 27,157.68 is: 40,734.92
Step by Step Solution
- Step 1: Write the proportion equation
82,561.68 : 123,837.66 = 27,157.68 : x - Step 2: Convert to fraction form
82,561.68/123,837.66 = 27,157.68/x - Step 3: Cross multiply
82,561.68x = 123,837.66 × 27,157.68 - Step 4: Simplify right side
82,561.68x = 3,363,143,542.23 - Step 5: Solve for x
x = 3,363,143,542.23/82,561.68 - Step 6: Final answer
x = 40,734.92
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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.