Finding the Fourth Proportional to 75,771.72, 113,707.80 and 29,022.84
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Solution
The fourth proportional to 75,771.72, 113,707.80 and 29,022.84 is: 43,553.50
Step by Step Solution
- Step 1: Write the proportion equation
75,771.72 : 113,707.80 = 29,022.84 : x - Step 2: Convert to fraction form
75,771.72/113,707.80 = 29,022.84/x - Step 3: Cross multiply
75,771.72x = 113,707.80 × 29,022.84 - Step 4: Simplify right side
75,771.72x = 3,300,123,286.15 - Step 5: Solve for x
x = 3,300,123,286.15/75,771.72 - Step 6: Final answer
x = 43,553.50
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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.