Finding the Fourth Proportional to 44.70, 66.99 and 31.17
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Solution
The fourth proportional to 44.70, 66.99 and 31.17 is: 46.71
Step by Step Solution
- Step 1: Write the proportion equation
44.70 : 66.99 = 31.17 : x - Step 2: Convert to fraction form
44.70/66.99 = 31.17/x - Step 3: Cross multiply
44.70x = 66.99 × 31.17 - Step 4: Simplify right side
44.70x = 2,088.08 - Step 5: Solve for x
x = 2,088.08/44.70 - Step 6: Final answer
x = 46.71
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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.