Finding the Fourth Proportional to 69,169.40, 103,687.68 and 44,138.78
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Solution
The fourth proportional to 69,169.40, 103,687.68 and 44,138.78 is: 66,165.79
Step by Step Solution
- Step 1: Write the proportion equation
69,169.40 : 103,687.68 = 44,138.78 : x - Step 2: Convert to fraction form
69,169.40/103,687.68 = 44,138.78/x - Step 3: Cross multiply
69,169.40x = 103,687.68 × 44,138.78 - Step 4: Simplify right side
69,169.40x = 4,576,647,696.23 - Step 5: Solve for x
x = 4,576,647,696.23/69,169.40 - Step 6: Final answer
x = 66,165.79
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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.