Finding the Fourth Proportional to 73,682.68, 110,431.02 and 31,512.88
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Solution
The fourth proportional to 73,682.68, 110,431.02 and 31,512.88 is: 47,229.55
Step by Step Solution
- Step 1: Write the proportion equation
73,682.68 : 110,431.02 = 31,512.88 : x - Step 2: Convert to fraction form
73,682.68/110,431.02 = 31,512.88/x - Step 3: Cross multiply
73,682.68x = 110,431.02 × 31,512.88 - Step 4: Simplify right side
73,682.68x = 3,479,999,481.54 - Step 5: Solve for x
x = 3,479,999,481.54/73,682.68 - Step 6: Final answer
x = 47,229.55
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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.