Finding the Fourth Proportional to 68,798.75, 103,198.23 and 18,879.53
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Solution
The fourth proportional to 68,798.75, 103,198.23 and 18,879.53 is: 28,319.32
Step by Step Solution
- Step 1: Write the proportion equation
68,798.75 : 103,198.23 = 18,879.53 : x - Step 2: Convert to fraction form
68,798.75/103,198.23 = 18,879.53/x - Step 3: Cross multiply
68,798.75x = 103,198.23 × 18,879.53 - Step 4: Simplify right side
68,798.75x = 1,948,333,563.24 - Step 5: Solve for x
x = 1,948,333,563.24/68,798.75 - Step 6: Final answer
x = 28,319.32
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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.