Finding the Fourth Proportional to 71,927.80, 107,891.70 and 71,927.80
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Solution
The fourth proportional to 71,927.80, 107,891.70 and 71,927.80 is: 107,891.70
Step by Step Solution
- Step 1: Write the proportion equation
71,927.80 : 107,891.70 = 71,927.80 : x - Step 2: Convert to fraction form
71,927.80/107,891.70 = 71,927.80/x - Step 3: Cross multiply
71,927.80x = 107,891.70 × 71,927.80 - Step 4: Simplify right side
71,927.80x = 7,760,412,619.26 - Step 5: Solve for x
x = 7,760,412,619.26/71,927.80 - Step 6: Final answer
x = 107,891.70
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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.