Finding the Fourth Proportional to 75,680.40, 113,502.36 and 33,537.12
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Solution
The fourth proportional to 75,680.40, 113,502.36 and 33,537.12 is: 50,297.60
Step by Step Solution
- Step 1: Write the proportion equation
75,680.40 : 113,502.36 = 33,537.12 : x - Step 2: Convert to fraction form
75,680.40/113,502.36 = 33,537.12/x - Step 3: Cross multiply
75,680.40x = 113,502.36 × 33,537.12 - Step 4: Simplify right side
75,680.40x = 3,806,542,267.60 - Step 5: Solve for x
x = 3,806,542,267.60/75,680.40 - Step 6: Final answer
x = 50,297.60
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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.