Finding the Fourth Proportional to 76,711.20, 105,850.44 and 44,874.08
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Solution
The fourth proportional to 76,711.20, 105,850.44 and 44,874.08 is: 61,919.79
Step by Step Solution
- Step 1: Write the proportion equation
76,711.20 : 105,850.44 = 44,874.08 : x - Step 2: Convert to fraction form
76,711.20/105,850.44 = 44,874.08/x - Step 3: Cross multiply
76,711.20x = 105,850.44 × 44,874.08 - Step 4: Simplify right side
76,711.20x = 4,749,941,112.60 - Step 5: Solve for x
x = 4,749,941,112.60/76,711.20 - Step 6: Final answer
x = 61,919.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.