Finding the Fourth Proportional to 91,099.29, 125,717.73 and 50,815.65
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Solution
The fourth proportional to 91,099.29, 125,717.73 and 50,815.65 is: 70,125.99
Step by Step Solution
- Step 1: Write the proportion equation
91,099.29 : 125,717.73 = 50,815.65 : x - Step 2: Convert to fraction form
91,099.29/125,717.73 = 50,815.65/x - Step 3: Cross multiply
91,099.29x = 125,717.73 × 50,815.65 - Step 4: Simplify right side
91,099.29x = 6,388,428,166.47 - Step 5: Solve for x
x = 6,388,428,166.47/91,099.29 - Step 6: Final answer
x = 70,125.99
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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.