Finding the Fourth Proportional to 47.23, 70.91 and 41.29
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Solution
The fourth proportional to 47.23, 70.91 and 41.29 is: 61.99
Step by Step Solution
- Step 1: Write the proportion equation
47.23 : 70.91 = 41.29 : x - Step 2: Convert to fraction form
47.23/70.91 = 41.29/x - Step 3: Cross multiply
47.23x = 70.91 × 41.29 - Step 4: Simplify right side
47.23x = 2,927.31 - Step 5: Solve for x
x = 2,927.31/47.23 - Step 6: Final answer
x = 61.99
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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.