Finding the Fourth Proportional to 82,832.75, 124,268.70 and 27,428.75
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Solution
The fourth proportional to 82,832.75, 124,268.70 and 27,428.75 is: 41,149.61
Step by Step Solution
- Step 1: Write the proportion equation
82,832.75 : 124,268.70 = 27,428.75 : x - Step 2: Convert to fraction form
82,832.75/124,268.70 = 27,428.75/x - Step 3: Cross multiply
82,832.75x = 124,268.70 × 27,428.75 - Step 4: Simplify right side
82,832.75x = 3,408,535,105.13 - Step 5: Solve for x
x = 3,408,535,105.13/82,832.75 - Step 6: Final answer
x = 41,149.61
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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.