Finding the Fourth Proportional to 75,615.40, 113,423.10 and 44,122.60
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Solution
The fourth proportional to 75,615.40, 113,423.10 and 44,122.60 is: 66,183.90
Step by Step Solution
- Step 1: Write the proportion equation
75,615.40 : 113,423.10 = 44,122.60 : x - Step 2: Convert to fraction form
75,615.40/113,423.10 = 44,122.60/x - Step 3: Cross multiply
75,615.40x = 113,423.10 × 44,122.60 - Step 4: Simplify right side
75,615.40x = 5,004,522,072.06 - Step 5: Solve for x
x = 5,004,522,072.06/75,615.40 - Step 6: Final answer
x = 66,183.90
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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.