Finding the Fourth Proportional to 75,115.13, 103,658.87 and 41,581.13
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Solution
The fourth proportional to 75,115.13, 103,658.87 and 41,581.13 is: 57,381.95
Step by Step Solution
- Step 1: Write the proportion equation
75,115.13 : 103,658.87 = 41,581.13 : x - Step 2: Convert to fraction form
75,115.13/103,658.87 = 41,581.13/x - Step 3: Cross multiply
75,115.13x = 103,658.87 × 41,581.13 - Step 4: Simplify right side
75,115.13x = 4,310,252,534.78 - Step 5: Solve for x
x = 4,310,252,534.78/75,115.13 - Step 6: Final answer
x = 57,381.95
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1.5x scale
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.