Finding the Fourth Proportional to 87,882.36, 121,286.34 and 50,162.28
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Solution
The fourth proportional to 87,882.36, 121,286.34 and 50,162.28 is: 69,228.90
Step by Step Solution
- Step 1: Write the proportion equation
87,882.36 : 121,286.34 = 50,162.28 : x - Step 2: Convert to fraction form
87,882.36/121,286.34 = 50,162.28/x - Step 3: Cross multiply
87,882.36x = 121,286.34 × 50,162.28 - Step 4: Simplify right side
87,882.36x = 6,083,999,347.26 - Step 5: Solve for x
x = 6,083,999,347.26/87,882.36 - Step 6: Final answer
x = 69,228.90
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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.