Finding the Fourth Proportional to 75.40, 104.12 and 46.34
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Solution
The fourth proportional to 75.40, 104.12 and 46.34 is: 63.99
Step by Step Solution
- Step 1: Write the proportion equation
75.40 : 104.12 = 46.34 : x - Step 2: Convert to fraction form
75.40/104.12 = 46.34/x - Step 3: Cross multiply
75.40x = 104.12 × 46.34 - Step 4: Simplify right side
75.40x = 4,824.92 - Step 5: Solve for x
x = 4,824.92/75.40 - Step 6: Final answer
x = 63.99
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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.