Finding the Fourth Proportional to 74,546.19, 111,738.42 and 37,134.18
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Solution
The fourth proportional to 74,546.19, 111,738.42 and 37,134.18 is: 55,660.99
Step by Step Solution
- Step 1: Write the proportion equation
74,546.19 : 111,738.42 = 37,134.18 : x - Step 2: Convert to fraction form
74,546.19/111,738.42 = 37,134.18/x - Step 3: Cross multiply
74,546.19x = 111,738.42 × 37,134.18 - Step 4: Simplify right side
74,546.19x = 4,149,314,601.20 - Step 5: Solve for x
x = 4,149,314,601.20/74,546.19 - Step 6: Final answer
x = 55,660.99
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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.