Finding the Fourth Proportional to 93.93, 140.97 and 39.84
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Solution
The fourth proportional to 93.93, 140.97 and 39.84 is: 59.79
Step by Step Solution
- Step 1: Write the proportion equation
93.93 : 140.97 = 39.84 : x - Step 2: Convert to fraction form
93.93/140.97 = 39.84/x - Step 3: Cross multiply
93.93x = 140.97 × 39.84 - Step 4: Simplify right side
93.93x = 5,616.24 - Step 5: Solve for x
x = 5,616.24/93.93 - Step 6: Final answer
x = 59.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.