Finding the Fourth Proportional to 86,906.19, 119,930.54 and 47,162.19
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Solution
The fourth proportional to 86,906.19, 119,930.54 and 47,162.19 is: 65,083.82
Step by Step Solution
- Step 1: Write the proportion equation
86,906.19 : 119,930.54 = 47,162.19 : x - Step 2: Convert to fraction form
86,906.19/119,930.54 = 47,162.19/x - Step 3: Cross multiply
86,906.19x = 119,930.54 × 47,162.19 - Step 4: Simplify right side
86,906.19x = 5,656,186,914.28 - Step 5: Solve for x
x = 5,656,186,914.28/86,906.19 - Step 6: Final answer
x = 65,083.82
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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.