Finding the Fourth Proportional to 82,198.99, 123,268.11 and 40,066.84
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Solution
The fourth proportional to 82,198.99, 123,268.11 and 40,066.84 is: 60,085.45
Step by Step Solution
- Step 1: Write the proportion equation
82,198.99 : 123,268.11 = 40,066.84 : x - Step 2: Convert to fraction form
82,198.99/123,268.11 = 40,066.84/x - Step 3: Cross multiply
82,198.99x = 123,268.11 × 40,066.84 - Step 4: Simplify right side
82,198.99x = 4,938,963,640.47 - Step 5: Solve for x
x = 4,938,963,640.47/82,198.99 - Step 6: Final answer
x = 60,085.45
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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.