Finding the Fourth Proportional to 47.27, 70.89 and 26.99
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Solution
The fourth proportional to 47.27, 70.89 and 26.99 is: 40.48
Step by Step Solution
- Step 1: Write the proportion equation
47.27 : 70.89 = 26.99 : x - Step 2: Convert to fraction form
47.27/70.89 = 26.99/x - Step 3: Cross multiply
47.27x = 70.89 × 26.99 - Step 4: Simplify right side
47.27x = 1,913.32 - Step 5: Solve for x
x = 1,913.32/47.27 - Step 6: Final answer
x = 40.48
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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.