Finding the Fourth Proportional to 65.57, 98.40 and 24.99
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Solution
The fourth proportional to 65.57, 98.40 and 24.99 is: 37.50
Step by Step Solution
- Step 1: Write the proportion equation
65.57 : 98.40 = 24.99 : x - Step 2: Convert to fraction form
65.57/98.40 = 24.99/x - Step 3: Cross multiply
65.57x = 98.40 × 24.99 - Step 4: Simplify right side
65.57x = 2,459.02 - Step 5: Solve for x
x = 2,459.02/65.57 - Step 6: Final answer
x = 37.50
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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.