Finding the Fourth Proportional to 82,380.65, 123,396.01 and 55,742.99
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Solution
The fourth proportional to 82,380.65, 123,396.01 and 55,742.99 is: 83,496.09
Step by Step Solution
- Step 1: Write the proportion equation
82,380.65 : 123,396.01 = 55,742.99 : x - Step 2: Convert to fraction form
82,380.65/123,396.01 = 55,742.99/x - Step 3: Cross multiply
82,380.65x = 123,396.01 × 55,742.99 - Step 4: Simplify right side
82,380.65x = 6,878,461,795.13 - Step 5: Solve for x
x = 6,878,461,795.13/82,380.65 - Step 6: Final answer
x = 83,496.09
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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.