Finding the Fourth Proportional to 94,313.26, 141,439.88 and 31,121.60
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Solution
The fourth proportional to 94,313.26, 141,439.88 and 31,121.60 is: 46,672.50
Step by Step Solution
- Step 1: Write the proportion equation
94,313.26 : 141,439.88 = 31,121.60 : x - Step 2: Convert to fraction form
94,313.26/141,439.88 = 31,121.60/x - Step 3: Cross multiply
94,313.26x = 141,439.88 × 31,121.60 - Step 4: Simplify right side
94,313.26x = 4,401,835,369.41 - Step 5: Solve for x
x = 4,401,835,369.41/94,313.26 - Step 6: Final answer
x = 46,672.50
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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.