Finding the Fourth Proportional to 77,163.22, 115,715.40 and 27,234.01
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Solution
The fourth proportional to 77,163.22, 115,715.40 and 27,234.01 is: 40,840.63
Step by Step Solution
- Step 1: Write the proportion equation
77,163.22 : 115,715.40 = 27,234.01 : x - Step 2: Convert to fraction form
77,163.22/115,715.40 = 27,234.01/x - Step 3: Cross multiply
77,163.22x = 115,715.40 × 27,234.01 - Step 4: Simplify right side
77,163.22x = 3,151,394,360.75 - Step 5: Solve for x
x = 3,151,394,360.75/77,163.22 - Step 6: Final answer
x = 40,840.63
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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.