Finding the Fourth Proportional to 74,574.99, 102,912.40 and 41,040.99
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Solution
The fourth proportional to 74,574.99, 102,912.40 and 41,040.99 is: 56,635.97
Step by Step Solution
- Step 1: Write the proportion equation
74,574.99 : 102,912.40 = 41,040.99 : x - Step 2: Convert to fraction form
74,574.99/102,912.40 = 41,040.99/x - Step 3: Cross multiply
74,574.99x = 102,912.40 × 41,040.99 - Step 4: Simplify right side
74,574.99x = 4,223,626,676.67 - Step 5: Solve for x
x = 4,223,626,676.67/74,574.99 - Step 6: Final answer
x = 56,635.97
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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.