Finding the Fourth Proportional to 91,073.76, 125,682.34 and 50,790.08
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Solution
The fourth proportional to 91,073.76, 125,682.34 and 50,790.08 is: 70,090.62
Step by Step Solution
- Step 1: Write the proportion equation
91,073.76 : 125,682.34 = 50,790.08 : x - Step 2: Convert to fraction form
91,073.76/125,682.34 = 50,790.08/x - Step 3: Cross multiply
91,073.76x = 125,682.34 × 50,790.08 - Step 4: Simplify right side
91,073.76x = 6,383,416,103.19 - Step 5: Solve for x
x = 6,383,416,103.19/91,073.76 - Step 6: Final answer
x = 70,090.62
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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.