Finding the Fourth Proportional to 75,274.38, 112,887.90 and 27,236.79
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Solution
The fourth proportional to 75,274.38, 112,887.90 and 27,236.79 is: 40,846.62
Step by Step Solution
- Step 1: Write the proportion equation
75,274.38 : 112,887.90 = 27,236.79 : x - Step 2: Convert to fraction form
75,274.38/112,887.90 = 27,236.79/x - Step 3: Cross multiply
75,274.38x = 112,887.90 × 27,236.79 - Step 4: Simplify right side
75,274.38x = 3,074,704,025.84 - Step 5: Solve for x
x = 3,074,704,025.84/75,274.38 - Step 6: Final answer
x = 40,846.62
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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.