Finding the Fourth Proportional to 84,682.08, 116,914.80 and 54,481.44
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Solution
The fourth proportional to 84,682.08, 116,914.80 and 54,481.44 is: 75,218.83
Step by Step Solution
- Step 1: Write the proportion equation
84,682.08 : 116,914.80 = 54,481.44 : x - Step 2: Convert to fraction form
84,682.08/116,914.80 = 54,481.44/x - Step 3: Cross multiply
84,682.08x = 116,914.80 × 54,481.44 - Step 4: Simplify right side
84,682.08x = 6,369,686,661.31 - Step 5: Solve for x
x = 6,369,686,661.31/84,682.08 - Step 6: Final answer
x = 75,218.83
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1.5x scale
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.