Finding the Fourth Proportional to 74,622.84, 111,939.30 and 27,874.68
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Solution
The fourth proportional to 74,622.84, 111,939.30 and 27,874.68 is: 41,813.90
Step by Step Solution
- Step 1: Write the proportion equation
74,622.84 : 111,939.30 = 27,874.68 : x - Step 2: Convert to fraction form
74,622.84/111,939.30 = 27,874.68/x - Step 3: Cross multiply
74,622.84x = 111,939.30 × 27,874.68 - Step 4: Simplify right side
74,622.84x = 3,120,272,166.92 - Step 5: Solve for x
x = 3,120,272,166.92/74,622.84 - Step 6: Final answer
x = 41,813.90
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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.