Finding the Fourth Proportional to 47.13, 70.62 and 35.70
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Solution
The fourth proportional to 47.13, 70.62 and 35.70 is: 53.49
Step by Step Solution
- Step 1: Write the proportion equation
47.13 : 70.62 = 35.70 : x - Step 2: Convert to fraction form
47.13/70.62 = 35.70/x - Step 3: Cross multiply
47.13x = 70.62 × 35.70 - Step 4: Simplify right side
47.13x = 2,521.13 - Step 5: Solve for x
x = 2,521.13/47.13 - Step 6: Final answer
x = 53.49
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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.