Finding the Fourth Proportional to 71,791.08, 107,690.24 and 27,421.68
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Solution
The fourth proportional to 71,791.08, 107,690.24 and 27,421.68 is: 41,133.90
Step by Step Solution
- Step 1: Write the proportion equation
71,791.08 : 107,690.24 = 27,421.68 : x - Step 2: Convert to fraction form
71,791.08/107,690.24 = 27,421.68/x - Step 3: Cross multiply
71,791.08x = 107,690.24 × 27,421.68 - Step 4: Simplify right side
71,791.08x = 2,953,047,300.40 - Step 5: Solve for x
x = 2,953,047,300.40/71,791.08 - Step 6: Final answer
x = 41,133.90
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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.