Finding the Fourth Proportional to 49.79, 68.68 and 35.99
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Solution
The fourth proportional to 49.79, 68.68 and 35.99 is: 49.65
Step by Step Solution
- Step 1: Write the proportion equation
49.79 : 68.68 = 35.99 : x - Step 2: Convert to fraction form
49.79/68.68 = 35.99/x - Step 3: Cross multiply
49.79x = 68.68 × 35.99 - Step 4: Simplify right side
49.79x = 2,471.61 - Step 5: Solve for x
x = 2,471.61/49.79 - Step 6: Final answer
x = 49.65
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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.