Finding the Fourth Proportional to 53.56, 80.19 and 46.75
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Solution
The fourth proportional to 53.56, 80.19 and 46.75 is: 69.99
Step by Step Solution
- Step 1: Write the proportion equation
53.56 : 80.19 = 46.75 : x - Step 2: Convert to fraction form
53.56/80.19 = 46.75/x - Step 3: Cross multiply
53.56x = 80.19 × 46.75 - Step 4: Simplify right side
53.56x = 3,748.88 - Step 5: Solve for x
x = 3,748.88/53.56 - Step 6: Final answer
x = 69.99
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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.