Finding the Fourth Proportional to 75,759.88, 113,640.38 and 33,628.63
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Solution
The fourth proportional to 75,759.88, 113,640.38 and 33,628.63 is: 50,443.20
Step by Step Solution
- Step 1: Write the proportion equation
75,759.88 : 113,640.38 = 33,628.63 : x - Step 2: Convert to fraction form
75,759.88/113,640.38 = 33,628.63/x - Step 3: Cross multiply
75,759.88x = 113,640.38 × 33,628.63 - Step 4: Simplify right side
75,759.88x = 3,821,570,518.20 - Step 5: Solve for x
x = 3,821,570,518.20/75,759.88 - Step 6: Final answer
x = 50,443.20
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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.