Finding the Fourth Proportional to 75,622.26, 113,433.52 and 20,218.26
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Solution
The fourth proportional to 75,622.26, 113,433.52 and 20,218.26 is: 30,327.42
Step by Step Solution
- Step 1: Write the proportion equation
75,622.26 : 113,433.52 = 20,218.26 : x - Step 2: Convert to fraction form
75,622.26/113,433.52 = 20,218.26/x - Step 3: Cross multiply
75,622.26x = 113,433.52 × 20,218.26 - Step 4: Simplify right side
75,622.26x = 2,293,428,400.08 - Step 5: Solve for x
x = 2,293,428,400.08/75,622.26 - Step 6: Final answer
x = 30,327.42
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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.