Finding the Fourth Proportional to 91,181.09, 125,850.90 and 53,467.49
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Solution
The fourth proportional to 91,181.09, 125,850.90 and 53,467.49 is: 73,797.45
Step by Step Solution
- Step 1: Write the proportion equation
91,181.09 : 125,850.90 = 53,467.49 : x - Step 2: Convert to fraction form
91,181.09/125,850.90 = 53,467.49/x - Step 3: Cross multiply
91,181.09x = 125,850.90 × 53,467.49 - Step 4: Simplify right side
91,181.09x = 6,728,931,107.99 - Step 5: Solve for x
x = 6,728,931,107.99/91,181.09 - Step 6: Final answer
x = 73,797.45
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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.