Finding the Fourth Proportional to 82,819.68, 124,163.70 and 36,039.75
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Solution
The fourth proportional to 82,819.68, 124,163.70 and 36,039.75 is: 54,030.98
Step by Step Solution
- Step 1: Write the proportion equation
82,819.68 : 124,163.70 = 36,039.75 : x - Step 2: Convert to fraction form
82,819.68/124,163.70 = 36,039.75/x - Step 3: Cross multiply
82,819.68x = 124,163.70 × 36,039.75 - Step 4: Simplify right side
82,819.68x = 4,474,828,707.08 - Step 5: Solve for x
x = 4,474,828,707.08/82,819.68 - Step 6: Final answer
x = 54,030.98
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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.