Finding the Fourth Proportional to 82,121.63, 113,328.11 and 44,396.15
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Solution
The fourth proportional to 82,121.63, 113,328.11 and 44,396.15 is: 61,266.83
Step by Step Solution
- Step 1: Write the proportion equation
82,121.63 : 113,328.11 = 44,396.15 : x - Step 2: Convert to fraction form
82,121.63/113,328.11 = 44,396.15/x - Step 3: Cross multiply
82,121.63x = 113,328.11 × 44,396.15 - Step 4: Simplify right side
82,121.63x = 5,031,331,315.13 - Step 5: Solve for x
x = 5,031,331,315.13/82,121.63 - Step 6: Final answer
x = 61,266.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.