Finding the Fourth Proportional to 82,863.80, 124,295.70 and 36,207.80
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Solution
The fourth proportional to 82,863.80, 124,295.70 and 36,207.80 is: 54,311.70
Step by Step Solution
- Step 1: Write the proportion equation
82,863.80 : 124,295.70 = 36,207.80 : x - Step 2: Convert to fraction form
82,863.80/124,295.70 = 36,207.80/x - Step 3: Cross multiply
82,863.80x = 124,295.70 × 36,207.80 - Step 4: Simplify right side
82,863.80x = 4,500,473,846.46 - Step 5: Solve for x
x = 4,500,473,846.46/82,863.80 - Step 6: Final answer
x = 54,311.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.