Finding the Fourth Proportional to 83.99, 125.99 and 29.90
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Solution
The fourth proportional to 83.99, 125.99 and 29.90 is: 44.84
Step by Step Solution
- Step 1: Write the proportion equation
83.99 : 125.99 = 29.90 : x - Step 2: Convert to fraction form
83.99/125.99 = 29.90/x - Step 3: Cross multiply
83.99x = 125.99 × 29.90 - Step 4: Simplify right side
83.99x = 3,766.55 - Step 5: Solve for x
x = 3,766.55/83.99 - Step 6: Final answer
x = 44.84
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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.