Finding the Fourth Proportional to 87,864.24, 121,250.70 and 50,137.68
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Solution
The fourth proportional to 87,864.24, 121,250.70 and 50,137.68 is: 69,188.88
Step by Step Solution
- Step 1: Write the proportion equation
87,864.24 : 121,250.70 = 50,137.68 : x - Step 2: Convert to fraction form
87,864.24/121,250.70 = 50,137.68/x - Step 3: Cross multiply
87,864.24x = 121,250.70 × 50,137.68 - Step 4: Simplify right side
87,864.24x = 6,079,228,796.38 - Step 5: Solve for x
x = 6,079,228,796.38/87,864.24 - Step 6: Final answer
x = 69,188.88
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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.