Finding the Fourth Proportional to 77,161.77, 115,751.97 and 27,231.66
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Solution
The fourth proportional to 77,161.77, 115,751.97 and 27,231.66 is: 40,850.78
Step by Step Solution
- Step 1: Write the proportion equation
77,161.77 : 115,751.97 = 27,231.66 : x - Step 2: Convert to fraction form
77,161.77/115,751.97 = 27,231.66/x - Step 3: Cross multiply
77,161.77x = 115,751.97 × 27,231.66 - Step 4: Simplify right side
77,161.77x = 3,152,118,291.37 - Step 5: Solve for x
x = 3,152,118,291.37/77,161.77 - Step 6: Final answer
x = 40,850.78
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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.