Finding the Fourth Proportional to 75,837.08, 113,755.68 and 20,433.08
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Solution
The fourth proportional to 75,837.08, 113,755.68 and 20,433.08 is: 30,649.64
Step by Step Solution
- Step 1: Write the proportion equation
75,837.08 : 113,755.68 = 20,433.08 : x - Step 2: Convert to fraction form
75,837.08/113,755.68 = 20,433.08/x - Step 3: Cross multiply
75,837.08x = 113,755.68 × 20,433.08 - Step 4: Simplify right side
75,837.08x = 2,324,378,909.89 - Step 5: Solve for x
x = 2,324,378,909.89/75,837.08 - Step 6: Final answer
x = 30,649.64
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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.