Finding the Fourth Proportional to 75,435.70, 113,174.73 and 22,128.94
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Solution
The fourth proportional to 75,435.70, 113,174.73 and 22,128.94 is: 33,199.62
Step by Step Solution
- Step 1: Write the proportion equation
75,435.70 : 113,174.73 = 22,128.94 : x - Step 2: Convert to fraction form
75,435.70/113,174.73 = 22,128.94/x - Step 3: Cross multiply
75,435.70x = 113,174.73 × 22,128.94 - Step 4: Simplify right side
75,435.70x = 2,504,436,526.75 - Step 5: Solve for x
x = 2,504,436,526.75/75,435.70 - Step 6: Final answer
x = 33,199.62
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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.