Finding the Fourth Proportional to 86,476.80, 119,324.26 and 48,743.76
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Solution
The fourth proportional to 86,476.80, 119,324.26 and 48,743.76 is: 67,258.65
Step by Step Solution
- Step 1: Write the proportion equation
86,476.80 : 119,324.26 = 48,743.76 : x - Step 2: Convert to fraction form
86,476.80/119,324.26 = 48,743.76/x - Step 3: Cross multiply
86,476.80x = 119,324.26 × 48,743.76 - Step 4: Simplify right side
86,476.80x = 5,816,313,091.62 - Step 5: Solve for x
x = 5,816,313,091.62/86,476.80 - Step 6: Final answer
x = 67,258.65
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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.