Finding the Fourth Proportional to 75,489.80, 113,234.70 and 31,093.70
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Solution
The fourth proportional to 75,489.80, 113,234.70 and 31,093.70 is: 46,640.55
Step by Step Solution
- Step 1: Write the proportion equation
75,489.80 : 113,234.70 = 31,093.70 : x - Step 2: Convert to fraction form
75,489.80/113,234.70 = 31,093.70/x - Step 3: Cross multiply
75,489.80x = 113,234.70 × 31,093.70 - Step 4: Simplify right side
75,489.80x = 3,520,885,791.39 - Step 5: Solve for x
x = 3,520,885,791.39/75,489.80 - Step 6: Final answer
x = 46,640.55
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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.