Finding the Fourth Proportional to 71,814.54, 107,721.87 and 19,222.65
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Solution
The fourth proportional to 71,814.54, 107,721.87 and 19,222.65 is: 28,833.99
Step by Step Solution
- Step 1: Write the proportion equation
71,814.54 : 107,721.87 = 19,222.65 : x - Step 2: Convert to fraction form
71,814.54/107,721.87 = 19,222.65/x - Step 3: Cross multiply
71,814.54x = 107,721.87 × 19,222.65 - Step 4: Simplify right side
71,814.54x = 2,070,699,804.36 - Step 5: Solve for x
x = 2,070,699,804.36/71,814.54 - Step 6: Final answer
x = 28,833.99
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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.