Finding the Fourth Proportional to 84,660.09, 126,979.75 and 49,140.77
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Solution
The fourth proportional to 84,660.09, 126,979.75 and 49,140.77 is: 73,705.12
Step by Step Solution
- Step 1: Write the proportion equation
84,660.09 : 126,979.75 = 49,140.77 : x - Step 2: Convert to fraction form
84,660.09/126,979.75 = 49,140.77/x - Step 3: Cross multiply
84,660.09x = 126,979.75 × 49,140.77 - Step 4: Simplify right side
84,660.09x = 6,239,882,115.93 - Step 5: Solve for x
x = 6,239,882,115.93/84,660.09 - Step 6: Final answer
x = 73,705.12
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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.