Finding the Fourth Proportional to 82,908.08, 114,380.67 and 51,021.62
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Solution
The fourth proportional to 82,908.08, 114,380.67 and 51,021.62 is: 70,389.85
Step by Step Solution
- Step 1: Write the proportion equation
82,908.08 : 114,380.67 = 51,021.62 : x - Step 2: Convert to fraction form
82,908.08/114,380.67 = 51,021.62/x - Step 3: Cross multiply
82,908.08x = 114,380.67 × 51,021.62 - Step 4: Simplify right side
82,908.08x = 5,835,887,080.09 - Step 5: Solve for x
x = 5,835,887,080.09/82,908.08 - Step 6: Final answer
x = 70,389.85
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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.