Finding the Fourth Proportional to 82,171.08, 113,293.26 and 68,578.74
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Solution
The fourth proportional to 82,171.08, 113,293.26 and 68,578.74 is: 94,552.84
Step by Step Solution
- Step 1: Write the proportion equation
82,171.08 : 113,293.26 = 68,578.74 : x - Step 2: Convert to fraction form
82,171.08/113,293.26 = 68,578.74/x - Step 3: Cross multiply
82,171.08x = 113,293.26 × 68,578.74 - Step 4: Simplify right side
82,171.08x = 7,769,509,021.29 - Step 5: Solve for x
x = 7,769,509,021.29/82,171.08 - Step 6: Final answer
x = 94,552.84
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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.