Finding the Fourth Proportional to 72,163.48, 108,178.98 and 27,776.92
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Solution
The fourth proportional to 72,163.48, 108,178.98 and 27,776.92 is: 41,639.88
Step by Step Solution
- Step 1: Write the proportion equation
72,163.48 : 108,178.98 = 27,776.92 : x - Step 2: Convert to fraction form
72,163.48/108,178.98 = 27,776.92/x - Step 3: Cross multiply
72,163.48x = 108,178.98 × 27,776.92 - Step 4: Simplify right side
72,163.48x = 3,004,878,873.14 - Step 5: Solve for x
x = 3,004,878,873.14/72,163.48 - Step 6: Final answer
x = 41,639.88
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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.