Finding the Fourth Proportional to 75,469.14, 113,227.41 and 31,116.78
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Solution
The fourth proportional to 75,469.14, 113,227.41 and 31,116.78 is: 46,684.94
Step by Step Solution
- Step 1: Write the proportion equation
75,469.14 : 113,227.41 = 31,116.78 : x - Step 2: Convert to fraction form
75,469.14/113,227.41 = 31,116.78/x - Step 3: Cross multiply
75,469.14x = 113,227.41 × 31,116.78 - Step 4: Simplify right side
75,469.14x = 3,523,272,406.94 - Step 5: Solve for x
x = 3,523,272,406.94/75,469.14 - Step 6: Final answer
x = 46,684.94
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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.