Finding the Fourth Proportional to 82,202.32, 113,378.16 and 49,936.80
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Solution
The fourth proportional to 82,202.32, 113,378.16 and 49,936.80 is: 68,875.70
Step by Step Solution
- Step 1: Write the proportion equation
82,202.32 : 113,378.16 = 49,936.80 : x - Step 2: Convert to fraction form
82,202.32/113,378.16 = 49,936.80/x - Step 3: Cross multiply
82,202.32x = 113,378.16 × 49,936.80 - Step 4: Simplify right side
82,202.32x = 5,661,742,500.29 - Step 5: Solve for x
x = 5,661,742,500.29/82,202.32 - Step 6: Final answer
x = 68,875.70
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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.