Finding the Fourth Proportional to 115,749.76, 173,647.68 and 36,861.44
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Solution
The fourth proportional to 115,749.76, 173,647.68 and 36,861.44 is: 55,299.50
Step by Step Solution
- Step 1: Write the proportion equation
115,749.76 : 173,647.68 = 36,861.44 : x - Step 2: Convert to fraction form
115,749.76/173,647.68 = 36,861.44/x - Step 3: Cross multiply
115,749.76x = 173,647.68 × 36,861.44 - Step 4: Simplify right side
115,749.76x = 6,400,903,537.46 - Step 5: Solve for x
x = 6,400,903,537.46/115,749.76 - Step 6: Final answer
x = 55,299.50
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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.