Finding the Fourth Proportional to 86,481.08, 119,349.48 and 48,757.76
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Solution
The fourth proportional to 86,481.08, 119,349.48 and 48,757.76 is: 67,288.86
Step by Step Solution
- Step 1: Write the proportion equation
86,481.08 : 119,349.48 = 48,757.76 : x - Step 2: Convert to fraction form
86,481.08/119,349.48 = 48,757.76/x - Step 3: Cross multiply
86,481.08x = 119,349.48 × 48,757.76 - Step 4: Simplify right side
86,481.08x = 5,819,213,301.96 - Step 5: Solve for x
x = 5,819,213,301.96/86,481.08 - Step 6: Final answer
x = 67,288.86
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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.