Finding the Fourth Proportional to 67.49, 93.20 and 53.67
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Solution
The fourth proportional to 67.49, 93.20 and 53.67 is: 74.12
Step by Step Solution
- Step 1: Write the proportion equation
67.49 : 93.20 = 53.67 : x - Step 2: Convert to fraction form
67.49/93.20 = 53.67/x - Step 3: Cross multiply
67.49x = 93.20 × 53.67 - Step 4: Simplify right side
67.49x = 5,001.78 - Step 5: Solve for x
x = 5,001.78/67.49 - Step 6: Final answer
x = 74.12
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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.