Finding the Fourth Proportional to 103,612.38, 155,444.09 and 33,491.70
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Solution
The fourth proportional to 103,612.38, 155,444.09 and 33,491.70 is: 50,245.80
Step by Step Solution
- Step 1: Write the proportion equation
103,612.38 : 155,444.09 = 33,491.70 : x - Step 2: Convert to fraction form
103,612.38/155,444.09 = 33,491.70/x - Step 3: Cross multiply
103,612.38x = 155,444.09 × 33,491.70 - Step 4: Simplify right side
103,612.38x = 5,206,086,829.05 - Step 5: Solve for x
x = 5,206,086,829.05/103,612.38 - Step 6: Final answer
x = 50,245.80
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1.5x scale
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.