Finding the Fourth Proportional to 82,170.75, 113,395.64 and 48,636.75
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Solution
The fourth proportional to 82,170.75, 113,395.64 and 48,636.75 is: 67,118.72
Step by Step Solution
- Step 1: Write the proportion equation
82,170.75 : 113,395.64 = 48,636.75 : x - Step 2: Convert to fraction form
82,170.75/113,395.64 = 48,636.75/x - Step 3: Cross multiply
82,170.75x = 113,395.64 × 48,636.75 - Step 4: Simplify right side
82,170.75x = 5,515,195,150.59 - Step 5: Solve for x
x = 5,515,195,150.59/82,170.75 - Step 6: Final answer
x = 67,118.72
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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.