Finding the Fourth Proportional to 75,233.70, 112,879.35 and 74,052.90
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Solution
The fourth proportional to 75,233.70, 112,879.35 and 74,052.90 is: 111,107.70
Step by Step Solution
- Step 1: Write the proportion equation
75,233.70 : 112,879.35 = 74,052.90 : x - Step 2: Convert to fraction form
75,233.70/112,879.35 = 74,052.90/x - Step 3: Cross multiply
75,233.70x = 112,879.35 × 74,052.90 - Step 4: Simplify right side
75,233.70x = 8,359,043,217.62 - Step 5: Solve for x
x = 8,359,043,217.62/75,233.70 - Step 6: Final answer
x = 111,107.70
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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.