Finding the Fourth Proportional to 53.49, 73.82 and 30.18
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Solution
The fourth proportional to 53.49, 73.82 and 30.18 is: 41.65
Step by Step Solution
- Step 1: Write the proportion equation
53.49 : 73.82 = 30.18 : x - Step 2: Convert to fraction form
53.49/73.82 = 30.18/x - Step 3: Cross multiply
53.49x = 73.82 × 30.18 - Step 4: Simplify right side
53.49x = 2,227.89 - Step 5: Solve for x
x = 2,227.89/53.49 - Step 6: Final answer
x = 41.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.