Finding the Fourth Proportional to 115,278.99, 172,917.26 and 29,889.39
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Solution
The fourth proportional to 115,278.99, 172,917.26 and 29,889.39 is: 44,833.77
Step by Step Solution
- Step 1: Write the proportion equation
115,278.99 : 172,917.26 = 29,889.39 : x - Step 2: Convert to fraction form
115,278.99/172,917.26 = 29,889.39/x - Step 3: Cross multiply
115,278.99x = 172,917.26 × 29,889.39 - Step 4: Simplify right side
115,278.99x = 5,168,391,421.87 - Step 5: Solve for x
x = 5,168,391,421.87/115,278.99 - Step 6: Final answer
x = 44,833.77
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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.