Finding the Fourth Proportional to 105,037.43, 144,949.97 and 57,289.75
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Solution
The fourth proportional to 105,037.43, 144,949.97 and 57,289.75 is: 79,058.94
Step by Step Solution
- Step 1: Write the proportion equation
105,037.43 : 144,949.97 = 57,289.75 : x - Step 2: Convert to fraction form
105,037.43/144,949.97 = 57,289.75/x - Step 3: Cross multiply
105,037.43x = 144,949.97 × 57,289.75 - Step 4: Simplify right side
105,037.43x = 8,304,147,324.66 - Step 5: Solve for x
x = 8,304,147,324.66/105,037.43 - Step 6: Final answer
x = 79,058.94
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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.