Finding the Fourth Proportional to 40.91, 61.70 and 40.44
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Solution
The fourth proportional to 40.91, 61.70 and 40.44 is: 60.99
Step by Step Solution
- Step 1: Write the proportion equation
40.91 : 61.70 = 40.44 : x - Step 2: Convert to fraction form
40.91/61.70 = 40.44/x - Step 3: Cross multiply
40.91x = 61.70 × 40.44 - Step 4: Simplify right side
40.91x = 2,495.15 - Step 5: Solve for x
x = 2,495.15/40.91 - Step 6: Final answer
x = 60.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.