Finding the Fourth Proportional to 82,446.36, 123,586.27 and 39,688.99
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Solution
The fourth proportional to 82,446.36, 123,586.27 and 39,688.99 is: 59,493.40
Step by Step Solution
- Step 1: Write the proportion equation
82,446.36 : 123,586.27 = 39,688.99 : x - Step 2: Convert to fraction form
82,446.36/123,586.27 = 39,688.99/x - Step 3: Cross multiply
82,446.36x = 123,586.27 × 39,688.99 - Step 4: Simplify right side
82,446.36x = 4,905,013,825.98 - Step 5: Solve for x
x = 4,905,013,825.98/82,446.36 - Step 6: Final answer
x = 59,493.40
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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.