Finding the Fourth Proportional to 80,821.26, 121,233.87 and 27,513.14
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Solution
The fourth proportional to 80,821.26, 121,233.87 and 27,513.14 is: 41,270.38
Step by Step Solution
- Step 1: Write the proportion equation
80,821.26 : 121,233.87 = 27,513.14 : x - Step 2: Convert to fraction form
80,821.26/121,233.87 = 27,513.14/x - Step 3: Cross multiply
80,821.26x = 121,233.87 × 27,513.14 - Step 4: Simplify right side
80,821.26x = 3,335,523,831.88 - Step 5: Solve for x
x = 3,335,523,831.88/80,821.26 - Step 6: Final answer
x = 41,270.38
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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.