Finding the Fourth Proportional to 68,993.13, 103,469.67 and 26,863.80
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Solution
The fourth proportional to 68,993.13, 103,469.67 and 26,863.80 is: 40,287.90
Step by Step Solution
- Step 1: Write the proportion equation
68,993.13 : 103,469.67 = 26,863.80 : x - Step 2: Convert to fraction form
68,993.13/103,469.67 = 26,863.80/x - Step 3: Cross multiply
68,993.13x = 103,469.67 × 26,863.80 - Step 4: Simplify right side
68,993.13x = 2,779,588,520.95 - Step 5: Solve for x
x = 2,779,588,520.95/68,993.13 - Step 6: Final answer
x = 40,287.90
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1.5x scale
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.