Finding the Fourth Proportional to 40.67, 60.54 and 40.09
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Solution
The fourth proportional to 40.67, 60.54 and 40.09 is: 59.68
Step by Step Solution
- Step 1: Write the proportion equation
40.67 : 60.54 = 40.09 : x - Step 2: Convert to fraction form
40.67/60.54 = 40.09/x - Step 3: Cross multiply
40.67x = 60.54 × 40.09 - Step 4: Simplify right side
40.67x = 2,427.05 - Step 5: Solve for x
x = 2,427.05/40.67 - Step 6: Final answer
x = 59.68
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.