Finding the Fourth Proportional to 91,245.30, 125,911.26 and 50,956.68
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Solution
The fourth proportional to 91,245.30, 125,911.26 and 50,956.68 is: 70,316.17
Step by Step Solution
- Step 1: Write the proportion equation
91,245.30 : 125,911.26 = 50,956.68 : x - Step 2: Convert to fraction form
91,245.30/125,911.26 = 50,956.68/x - Step 3: Cross multiply
91,245.30x = 125,911.26 × 50,956.68 - Step 4: Simplify right side
91,245.30x = 6,416,019,784.22 - Step 5: Solve for x
x = 6,416,019,784.22/91,245.30 - Step 6: Final answer
x = 70,316.17
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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.