Finding the Fourth Proportional to 82,930.65, 124,213.63 and 68,535.99
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Solution
The fourth proportional to 82,930.65, 124,213.63 and 68,535.99 is: 102,653.29
Step by Step Solution
- Step 1: Write the proportion equation
82,930.65 : 124,213.63 = 68,535.99 : x - Step 2: Convert to fraction form
82,930.65/124,213.63 = 68,535.99/x - Step 3: Cross multiply
82,930.65x = 124,213.63 × 68,535.99 - Step 4: Simplify right side
82,930.65x = 8,513,103,482.48 - Step 5: Solve for x
x = 8,513,103,482.48/82,930.65 - Step 6: Final answer
x = 102,653.29
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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.