Finding the Fourth Proportional to 75,446.54, 113,169.37 and 19,286.57
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Solution
The fourth proportional to 75,446.54, 113,169.37 and 19,286.57 is: 28,929.75
Step by Step Solution
- Step 1: Write the proportion equation
75,446.54 : 113,169.37 = 19,286.57 : x - Step 2: Convert to fraction form
75,446.54/113,169.37 = 19,286.57/x - Step 3: Cross multiply
75,446.54x = 113,169.37 × 19,286.57 - Step 4: Simplify right side
75,446.54x = 2,182,649,247.23 - Step 5: Solve for x
x = 2,182,649,247.23/75,446.54 - Step 6: Final answer
x = 28,929.75
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1.5x scale
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.