Finding the Fourth Proportional to 75,755.20, 113,414.10 and 46,230.70
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Solution
The fourth proportional to 75,755.20, 113,414.10 and 46,230.70 is: 69,212.59
Step by Step Solution
- Step 1: Write the proportion equation
75,755.20 : 113,414.10 = 46,230.70 : x - Step 2: Convert to fraction form
75,755.20/113,414.10 = 46,230.70/x - Step 3: Cross multiply
75,755.20x = 113,414.10 × 46,230.70 - Step 4: Simplify right side
75,755.20x = 5,243,213,232.87 - Step 5: Solve for x
x = 5,243,213,232.87/75,755.20 - Step 6: Final answer
x = 69,212.59
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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.