Finding the Fourth Proportional to 40.74, 61.08 and 34.03
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Solution
The fourth proportional to 40.74, 61.08 and 34.03 is: 51.02
Step by Step Solution
- Step 1: Write the proportion equation
40.74 : 61.08 = 34.03 : x - Step 2: Convert to fraction form
40.74/61.08 = 34.03/x - Step 3: Cross multiply
40.74x = 61.08 × 34.03 - Step 4: Simplify right side
40.74x = 2,078.55 - Step 5: Solve for x
x = 2,078.55/40.74 - Step 6: Final answer
x = 51.02
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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.