Finding the Fourth Proportional to 79,717.76, 119,575.52 and 27,163.92
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Solution
The fourth proportional to 79,717.76, 119,575.52 and 27,163.92 is: 40,745.50
Step by Step Solution
- Step 1: Write the proportion equation
79,717.76 : 119,575.52 = 27,163.92 : x - Step 2: Convert to fraction form
79,717.76/119,575.52 = 27,163.92/x - Step 3: Cross multiply
79,717.76x = 119,575.52 × 27,163.92 - Step 4: Simplify right side
79,717.76x = 3,248,139,859.24 - Step 5: Solve for x
x = 3,248,139,859.24/79,717.76 - Step 6: Final answer
x = 40,745.50
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1.5x scale
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.