Finding the Fourth Proportional to 75,115.11, 103,658.87 and 41,125.75
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Solution
The fourth proportional to 75,115.11, 103,658.87 and 41,125.75 is: 56,753.55
Step by Step Solution
- Step 1: Write the proportion equation
75,115.11 : 103,658.87 = 41,125.75 : x - Step 2: Convert to fraction form
75,115.11/103,658.87 = 41,125.75/x - Step 3: Cross multiply
75,115.11x = 103,658.87 × 41,125.75 - Step 4: Simplify right side
75,115.11x = 4,263,048,567.27 - Step 5: Solve for x
x = 4,263,048,567.27/75,115.11 - Step 6: Final answer
x = 56,753.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.