Finding the Fourth Proportional to 82,958.44, 124,438.12 and 20,628.92
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Solution
The fourth proportional to 82,958.44, 124,438.12 and 20,628.92 is: 30,943.49
Step by Step Solution
- Step 1: Write the proportion equation
82,958.44 : 124,438.12 = 20,628.92 : x - Step 2: Convert to fraction form
82,958.44/124,438.12 = 20,628.92/x - Step 3: Cross multiply
82,958.44x = 124,438.12 × 20,628.92 - Step 4: Simplify right side
82,958.44x = 2,567,024,022.43 - Step 5: Solve for x
x = 2,567,024,022.43/82,958.44 - Step 6: Final answer
x = 30,943.49
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1.5x scale
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.