Finding the Fourth Proportional to 87,863.36, 121,260.12 and 50,143.28
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Solution
The fourth proportional to 87,863.36, 121,260.12 and 50,143.28 is: 69,202.68
Step by Step Solution
- Step 1: Write the proportion equation
87,863.36 : 121,260.12 = 50,143.28 : x - Step 2: Convert to fraction form
87,863.36/121,260.12 = 50,143.28/x - Step 3: Cross multiply
87,863.36x = 121,260.12 × 50,143.28 - Step 4: Simplify right side
87,863.36x = 6,080,380,149.99 - Step 5: Solve for x
x = 6,080,380,149.99/87,863.36 - Step 6: Final answer
x = 69,202.68
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1.5x scale
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.