Finding the Fourth Proportional to 73,491.88, 101,418.66 and 39,957.80
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Solution
The fourth proportional to 73,491.88, 101,418.66 and 39,957.80 is: 55,141.69
Step by Step Solution
- Step 1: Write the proportion equation
73,491.88 : 101,418.66 = 39,957.80 : x - Step 2: Convert to fraction form
73,491.88/101,418.66 = 39,957.80/x - Step 3: Cross multiply
73,491.88x = 101,418.66 × 39,957.80 - Step 4: Simplify right side
73,491.88x = 4,052,466,532.55 - Step 5: Solve for x
x = 4,052,466,532.55/73,491.88 - Step 6: Final answer
x = 55,141.69
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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.