Finding the Fourth Proportional to 81,520.23, 122,315.49 and 44,106.60
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Solution
The fourth proportional to 81,520.23, 122,315.49 and 44,106.60 is: 66,178.92
Step by Step Solution
- Step 1: Write the proportion equation
81,520.23 : 122,315.49 = 44,106.60 : x - Step 2: Convert to fraction form
81,520.23/122,315.49 = 44,106.60/x - Step 3: Cross multiply
81,520.23x = 122,315.49 × 44,106.60 - Step 4: Simplify right side
81,520.23x = 5,394,920,391.23 - Step 5: Solve for x
x = 5,394,920,391.23/81,520.23 - Step 6: Final answer
x = 66,178.92
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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.