Finding the Fourth Proportional to 40.58, 60.75 and 30.99
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Solution
The fourth proportional to 40.58, 60.75 and 30.99 is: 46.39
Step by Step Solution
- Step 1: Write the proportion equation
40.58 : 60.75 = 30.99 : x - Step 2: Convert to fraction form
40.58/60.75 = 30.99/x - Step 3: Cross multiply
40.58x = 60.75 × 30.99 - Step 4: Simplify right side
40.58x = 1,882.72 - Step 5: Solve for x
x = 1,882.72/40.58 - Step 6: Final answer
x = 46.39
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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.