Finding the Fourth Proportional to 71,187.26, 106,781.93 and 18,596.75
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Solution
The fourth proportional to 71,187.26, 106,781.93 and 18,596.75 is: 27,895.40
Step by Step Solution
- Step 1: Write the proportion equation
71,187.26 : 106,781.93 = 18,596.75 : x - Step 2: Convert to fraction form
71,187.26/106,781.93 = 18,596.75/x - Step 3: Cross multiply
71,187.26x = 106,781.93 × 18,596.75 - Step 4: Simplify right side
71,187.26x = 1,985,796,856.73 - Step 5: Solve for x
x = 1,985,796,856.73/71,187.26 - Step 6: Final answer
x = 27,895.40
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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.