Finding the Fourth Proportional to 87,634.05, 120,935.03 and 47,347.80
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Solution
The fourth proportional to 87,634.05, 120,935.03 and 47,347.80 is: 65,339.99
Step by Step Solution
- Step 1: Write the proportion equation
87,634.05 : 120,935.03 = 47,347.80 : x - Step 2: Convert to fraction form
87,634.05/120,935.03 = 47,347.80/x - Step 3: Cross multiply
87,634.05x = 120,935.03 × 47,347.80 - Step 4: Simplify right side
87,634.05x = 5,726,007,613.43 - Step 5: Solve for x
x = 5,726,007,613.43/87,634.05 - Step 6: Final answer
x = 65,339.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.