Finding the Fourth Proportional to 87,883.36, 121,287.72 and 50,163.28
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Solution
The fourth proportional to 87,883.36, 121,287.72 and 50,163.28 is: 69,230.28
Step by Step Solution
- Step 1: Write the proportion equation
87,883.36 : 121,287.72 = 50,163.28 : x - Step 2: Convert to fraction form
87,883.36/121,287.72 = 50,163.28/x - Step 3: Cross multiply
87,883.36x = 121,287.72 × 50,163.28 - Step 4: Simplify right side
87,883.36x = 6,084,189,858.92 - Step 5: Solve for x
x = 6,084,189,858.92/87,883.36 - Step 6: Final answer
x = 69,230.28
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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.