Finding the Fourth Proportional to 82,495.95, 123,745.85 and 20,166.99
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Solution
The fourth proportional to 82,495.95, 123,745.85 and 20,166.99 is: 30,250.95
Step by Step Solution
- Step 1: Write the proportion equation
82,495.95 : 123,745.85 = 20,166.99 : x - Step 2: Convert to fraction form
82,495.95/123,745.85 = 20,166.99/x - Step 3: Cross multiply
82,495.95x = 123,745.85 × 20,166.99 - Step 4: Simplify right side
82,495.95x = 2,495,581,218.66 - Step 5: Solve for x
x = 2,495,581,218.66/82,495.95 - Step 6: Final answer
x = 30,250.95
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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.