Finding the Fourth Proportional to 67.76, 93.53 and 47.09
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Solution
The fourth proportional to 67.76, 93.53 and 47.09 is: 65.00
Step by Step Solution
- Step 1: Write the proportion equation
67.76 : 93.53 = 47.09 : x - Step 2: Convert to fraction form
67.76/93.53 = 47.09/x - Step 3: Cross multiply
67.76x = 93.53 × 47.09 - Step 4: Simplify right side
67.76x = 4,404.33 - Step 5: Solve for x
x = 4,404.33/67.76 - Step 6: Final answer
x = 65.00
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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.