Finding the Fourth Proportional to 69.93, 104.85 and 29.34
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Solution
The fourth proportional to 69.93, 104.85 and 29.34 is: 43.99
Step by Step Solution
- Step 1: Write the proportion equation
69.93 : 104.85 = 29.34 : x - Step 2: Convert to fraction form
69.93/104.85 = 29.34/x - Step 3: Cross multiply
69.93x = 104.85 × 29.34 - Step 4: Simplify right side
69.93x = 3,076.30 - Step 5: Solve for x
x = 3,076.30/69.93 - Step 6: Final answer
x = 43.99
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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.