Finding the Fourth Proportional to 87,847.13, 121,232.49 and 49,614.73
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Solution
The fourth proportional to 87,847.13, 121,232.49 and 49,614.73 is: 68,470.28
Step by Step Solution
- Step 1: Write the proportion equation
87,847.13 : 121,232.49 = 49,614.73 : x - Step 2: Convert to fraction form
87,847.13/121,232.49 = 49,614.73/x - Step 3: Cross multiply
87,847.13x = 121,232.49 × 49,614.73 - Step 4: Simplify right side
87,847.13x = 6,014,917,258.58 - Step 5: Solve for x
x = 6,014,917,258.58/87,847.13 - Step 6: Final answer
x = 68,470.28
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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.