Finding the Fourth Proportional to 73,708.23, 102,009.68 and 71,939.49
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Solution
The fourth proportional to 73,708.23, 102,009.68 and 71,939.49 is: 99,561.80
Step by Step Solution
- Step 1: Write the proportion equation
73,708.23 : 102,009.68 = 71,939.49 : x - Step 2: Convert to fraction form
73,708.23/102,009.68 = 71,939.49/x - Step 3: Cross multiply
73,708.23x = 102,009.68 × 71,939.49 - Step 4: Simplify right side
73,708.23x = 7,338,524,354.26 - Step 5: Solve for x
x = 7,338,524,354.26/73,708.23 - Step 6: Final answer
x = 99,561.80
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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.