Finding the Fourth Proportional to 50.45, 75.59 and 19.99
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Solution
The fourth proportional to 50.45, 75.59 and 19.99 is: 29.95
Step by Step Solution
- Step 1: Write the proportion equation
50.45 : 75.59 = 19.99 : x - Step 2: Convert to fraction form
50.45/75.59 = 19.99/x - Step 3: Cross multiply
50.45x = 75.59 × 19.99 - Step 4: Simplify right side
50.45x = 1,510.67 - Step 5: Solve for x
x = 1,510.67/50.45 - Step 6: Final answer
x = 29.95
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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.