Finding the Fourth Proportional to 32.55, 45.12 and 31.99
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Solution
The fourth proportional to 32.55, 45.12 and 31.99 is: 44.34
Step by Step Solution
- Step 1: Write the proportion equation
32.55 : 45.12 = 31.99 : x - Step 2: Convert to fraction form
32.55/45.12 = 31.99/x - Step 3: Cross multiply
32.55x = 45.12 × 31.99 - Step 4: Simplify right side
32.55x = 1,443.39 - Step 5: Solve for x
x = 1,443.39/32.55 - Step 6: Final answer
x = 44.34
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.