Finding the Fourth Proportional to 75,475.80, 113,148.09 and 49,231.80
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Solution
The fourth proportional to 75,475.80, 113,148.09 and 49,231.80 is: 73,804.90
Step by Step Solution
- Step 1: Write the proportion equation
75,475.80 : 113,148.09 = 49,231.80 : x - Step 2: Convert to fraction form
75,475.80/113,148.09 = 49,231.80/x - Step 3: Cross multiply
75,475.80x = 113,148.09 × 49,231.80 - Step 4: Simplify right side
75,475.80x = 5,570,484,137.26 - Step 5: Solve for x
x = 5,570,484,137.26/75,475.80 - Step 6: Final answer
x = 73,804.90
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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.