Finding the Fourth Proportional to 67,689.75, 101,534.63 and 18,441.75
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Solution
The fourth proportional to 67,689.75, 101,534.63 and 18,441.75 is: 27,662.63
Step by Step Solution
- Step 1: Write the proportion equation
67,689.75 : 101,534.63 = 18,441.75 : x - Step 2: Convert to fraction form
67,689.75/101,534.63 = 18,441.75/x - Step 3: Cross multiply
67,689.75x = 101,534.63 × 18,441.75 - Step 4: Simplify right side
67,689.75x = 1,872,476,262.80 - Step 5: Solve for x
x = 1,872,476,262.80/67,689.75 - Step 6: Final answer
x = 27,662.63
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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.