Finding the Fourth Proportional to 67.84, 93.56 and 53.92
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Solution
The fourth proportional to 67.84, 93.56 and 53.92 is: 74.36
Step by Step Solution
- Step 1: Write the proportion equation
67.84 : 93.56 = 53.92 : x - Step 2: Convert to fraction form
67.84/93.56 = 53.92/x - Step 3: Cross multiply
67.84x = 93.56 × 53.92 - Step 4: Simplify right side
67.84x = 5,044.76 - Step 5: Solve for x
x = 5,044.76/67.84 - Step 6: Final answer
x = 74.36
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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.