Finding the Fourth Proportional to 87,766.91, 121,117.83 and 47,480.55
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Solution
The fourth proportional to 87,766.91, 121,117.83 and 47,480.55 is: 65,522.89
Step by Step Solution
- Step 1: Write the proportion equation
87,766.91 : 121,117.83 = 47,480.55 : x - Step 2: Convert to fraction form
87,766.91/121,117.83 = 47,480.55/x - Step 3: Cross multiply
87,766.91x = 121,117.83 × 47,480.55 - Step 4: Simplify right side
87,766.91x = 5,750,741,183.21 - Step 5: Solve for x
x = 5,750,741,183.21/87,766.91 - Step 6: Final answer
x = 65,522.89
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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.