Finding the Fourth Proportional to 74,121.99, 102,286.46 and 41,416.68
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Solution
The fourth proportional to 74,121.99, 102,286.46 and 41,416.68 is: 57,153.97
Step by Step Solution
- Step 1: Write the proportion equation
74,121.99 : 102,286.46 = 41,416.68 : x - Step 2: Convert to fraction form
74,121.99/102,286.46 = 41,416.68/x - Step 3: Cross multiply
74,121.99x = 102,286.46 × 41,416.68 - Step 4: Simplify right side
74,121.99x = 4,236,366,069.27 - Step 5: Solve for x
x = 4,236,366,069.27/74,121.99 - Step 6: Final answer
x = 57,153.97
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1.5x scale
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.