Finding the Fourth Proportional to 71,832.76, 107,749.34 and 71,728.96
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Solution
The fourth proportional to 71,832.76, 107,749.34 and 71,728.96 is: 107,593.64
Step by Step Solution
- Step 1: Write the proportion equation
71,832.76 : 107,749.34 = 71,728.96 : x - Step 2: Convert to fraction form
71,832.76/107,749.34 = 71,728.96/x - Step 3: Cross multiply
71,832.76x = 107,749.34 × 71,728.96 - Step 4: Simplify right side
71,832.76x = 7,728,748,098.89 - Step 5: Solve for x
x = 7,728,748,098.89/71,832.76 - Step 6: Final answer
x = 107,593.64
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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.