Finding the Fourth Proportional to 43.99, 60.72 and 30.88
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Solution
The fourth proportional to 43.99, 60.72 and 30.88 is: 42.62
Step by Step Solution
- Step 1: Write the proportion equation
43.99 : 60.72 = 30.88 : x - Step 2: Convert to fraction form
43.99/60.72 = 30.88/x - Step 3: Cross multiply
43.99x = 60.72 × 30.88 - Step 4: Simplify right side
43.99x = 1,875.03 - Step 5: Solve for x
x = 1,875.03/43.99 - Step 6: Final answer
x = 42.62
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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.