Finding the Fourth Proportional to 68,744.96, 103,115.88 and 21,997.68
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Solution
The fourth proportional to 68,744.96, 103,115.88 and 21,997.68 is: 32,996.02
Step by Step Solution
- Step 1: Write the proportion equation
68,744.96 : 103,115.88 = 21,997.68 : x - Step 2: Convert to fraction form
68,744.96/103,115.88 = 21,997.68/x - Step 3: Cross multiply
68,744.96x = 103,115.88 × 21,997.68 - Step 4: Simplify right side
68,744.96x = 2,268,310,131.16 - Step 5: Solve for x
x = 2,268,310,131.16/68,744.96 - Step 6: Final answer
x = 32,996.02
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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.