Finding the Fourth Proportional to 68,717.10, 103,078.77 and 18,796.08
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Solution
The fourth proportional to 68,717.10, 103,078.77 and 18,796.08 is: 28,194.97
Step by Step Solution
- Step 1: Write the proportion equation
68,717.10 : 103,078.77 = 18,796.08 : x - Step 2: Convert to fraction form
68,717.10/103,078.77 = 18,796.08/x - Step 3: Cross multiply
68,717.10x = 103,078.77 × 18,796.08 - Step 4: Simplify right side
68,717.10x = 1,937,476,713.24 - Step 5: Solve for x
x = 1,937,476,713.24/68,717.10 - Step 6: Final answer
x = 28,194.97
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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.