Finding the Fourth Proportional to 104,538.87, 144,260.49 and 56,792.10
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Solution
The fourth proportional to 104,538.87, 144,260.49 and 56,792.10 is: 78,371.39
Step by Step Solution
- Step 1: Write the proportion equation
104,538.87 : 144,260.49 = 56,792.10 : x - Step 2: Convert to fraction form
104,538.87/144,260.49 = 56,792.10/x - Step 3: Cross multiply
104,538.87x = 144,260.49 × 56,792.10 - Step 4: Simplify right side
104,538.87x = 8,192,856,174.13 - Step 5: Solve for x
x = 8,192,856,174.13/104,538.87 - Step 6: Final answer
x = 78,371.39
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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.