Finding the Fourth Proportional to 42.72, 58.97 and 26.13
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Solution
The fourth proportional to 42.72, 58.97 and 26.13 is: 36.07
Step by Step Solution
- Step 1: Write the proportion equation
42.72 : 58.97 = 26.13 : x - Step 2: Convert to fraction form
42.72/58.97 = 26.13/x - Step 3: Cross multiply
42.72x = 58.97 × 26.13 - Step 4: Simplify right side
42.72x = 1,540.89 - Step 5: Solve for x
x = 1,540.89/42.72 - Step 6: Final answer
x = 36.07
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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.