Finding the Fourth Proportional to 49,815.41, 74,736.37 and 20,217.09
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Solution
The fourth proportional to 49,815.41, 74,736.37 and 20,217.09 is: 30,331.02
Step by Step Solution
- Step 1: Write the proportion equation
49,815.41 : 74,736.37 = 20,217.09 : x - Step 2: Convert to fraction form
49,815.41/74,736.37 = 20,217.09/x - Step 3: Cross multiply
49,815.41x = 74,736.37 × 20,217.09 - Step 4: Simplify right side
49,815.41x = 1,510,952,224.10 - Step 5: Solve for x
x = 1,510,952,224.10/49,815.41 - Step 6: Final answer
x = 30,331.02
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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.