Finding the Fourth Proportional to 75,135.75, 103,687.29 and 41,601.75
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Solution
The fourth proportional to 75,135.75, 103,687.29 and 41,601.75 is: 57,410.39
Step by Step Solution
- Step 1: Write the proportion equation
75,135.75 : 103,687.29 = 41,601.75 : x - Step 2: Convert to fraction form
75,135.75/103,687.29 = 41,601.75/x - Step 3: Cross multiply
75,135.75x = 103,687.29 × 41,601.75 - Step 4: Simplify right side
75,135.75x = 4,313,572,911.17 - Step 5: Solve for x
x = 4,313,572,911.17/75,135.75 - Step 6: Final answer
x = 57,410.39
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1.5x scale
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.