Finding the Fourth Proportional to 86,936.96, 119,971.20 and 47,192.96
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Solution
The fourth proportional to 86,936.96, 119,971.20 and 47,192.96 is: 65,125.31
Step by Step Solution
- Step 1: Write the proportion equation
86,936.96 : 119,971.20 = 47,192.96 : x - Step 2: Convert to fraction form
86,936.96/119,971.20 = 47,192.96/x - Step 3: Cross multiply
86,936.96x = 119,971.20 × 47,192.96 - Step 4: Simplify right side
86,936.96x = 5,661,796,042.75 - Step 5: Solve for x
x = 5,661,796,042.75/86,936.96 - Step 6: Final answer
x = 65,125.31
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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.