Finding the Fourth Proportional to 42.63, 63.95 and 29.08
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Solution
The fourth proportional to 42.63, 63.95 and 29.08 is: 43.62
Step by Step Solution
- Step 1: Write the proportion equation
42.63 : 63.95 = 29.08 : x - Step 2: Convert to fraction form
42.63/63.95 = 29.08/x - Step 3: Cross multiply
42.63x = 63.95 × 29.08 - Step 4: Simplify right side
42.63x = 1,859.67 - Step 5: Solve for x
x = 1,859.67/42.63 - Step 6: Final answer
x = 43.62
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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.