Finding the Fourth Proportional to 82,873.70, 124,310.55 and 69,751.70
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Solution
The fourth proportional to 82,873.70, 124,310.55 and 69,751.70 is: 104,627.55
Step by Step Solution
- Step 1: Write the proportion equation
82,873.70 : 124,310.55 = 69,751.70 : x - Step 2: Convert to fraction form
82,873.70/124,310.55 = 69,751.70/x - Step 3: Cross multiply
82,873.70x = 124,310.55 × 69,751.70 - Step 4: Simplify right side
82,873.70x = 8,670,872,190.44 - Step 5: Solve for x
x = 8,670,872,190.44/82,873.70 - Step 6: Final answer
x = 104,627.55
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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.