Finding the Fourth Proportional to 77,246.40, 115,880.40 and 32,872.80
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Solution
The fourth proportional to 77,246.40, 115,880.40 and 32,872.80 is: 49,313.80
Step by Step Solution
- Step 1: Write the proportion equation
77,246.40 : 115,880.40 = 32,872.80 : x - Step 2: Convert to fraction form
77,246.40/115,880.40 = 32,872.80/x - Step 3: Cross multiply
77,246.40x = 115,880.40 × 32,872.80 - Step 4: Simplify right side
77,246.40x = 3,809,313,213.12 - Step 5: Solve for x
x = 3,809,313,213.12/77,246.40 - Step 6: Final answer
x = 49,313.80
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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.