Finding the Fourth Proportional to 43.08, 64.56 and 34.09
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Solution
The fourth proportional to 43.08, 64.56 and 34.09 is: 51.09
Step by Step Solution
- Step 1: Write the proportion equation
43.08 : 64.56 = 34.09 : x - Step 2: Convert to fraction form
43.08/64.56 = 34.09/x - Step 3: Cross multiply
43.08x = 64.56 × 34.09 - Step 4: Simplify right side
43.08x = 2,200.85 - Step 5: Solve for x
x = 2,200.85/43.08 - Step 6: Final answer
x = 51.09
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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.