Finding the Fourth Proportional to 82,868.10, 124,345.35 and 36,125.70
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Solution
The fourth proportional to 82,868.10, 124,345.35 and 36,125.70 is: 54,207.38
Step by Step Solution
- Step 1: Write the proportion equation
82,868.10 : 124,345.35 = 36,125.70 : x - Step 2: Convert to fraction form
82,868.10/124,345.35 = 36,125.70/x - Step 3: Cross multiply
82,868.10x = 124,345.35 × 36,125.70 - Step 4: Simplify right side
82,868.10x = 4,492,062,810.50 - Step 5: Solve for x
x = 4,492,062,810.50/82,868.10 - Step 6: Final answer
x = 54,207.38
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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.