Finding the Fourth Proportional to 82,723.16, 114,138.15 and 48,729.08
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Solution
The fourth proportional to 82,723.16, 114,138.15 and 48,729.08 is: 67,234.46
Step by Step Solution
- Step 1: Write the proportion equation
82,723.16 : 114,138.15 = 48,729.08 : x - Step 2: Convert to fraction form
82,723.16/114,138.15 = 48,729.08/x - Step 3: Cross multiply
82,723.16x = 114,138.15 × 48,729.08 - Step 4: Simplify right side
82,723.16x = 5,561,846,471.71 - Step 5: Solve for x
x = 5,561,846,471.71/82,723.16 - Step 6: Final answer
x = 67,234.46
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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.