Finding the Fourth Proportional to 123,629.48, 185,382.78 and 39,378.68
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Solution
The fourth proportional to 123,629.48, 185,382.78 and 39,378.68 is: 59,048.45
Step by Step Solution
- Step 1: Write the proportion equation
123,629.48 : 185,382.78 = 39,378.68 : x - Step 2: Convert to fraction form
123,629.48/185,382.78 = 39,378.68/x - Step 3: Cross multiply
123,629.48x = 185,382.78 × 39,378.68 - Step 4: Simplify right side
123,629.48x = 7,300,129,171.13 - Step 5: Solve for x
x = 7,300,129,171.13/123,629.48 - Step 6: Final answer
x = 59,048.45
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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.