Finding the Fourth Proportional to 71,537.92, 107,412.21 and 40,009.75
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Solution
The fourth proportional to 71,537.92, 107,412.21 and 40,009.75 is: 60,073.53
Step by Step Solution
- Step 1: Write the proportion equation
71,537.92 : 107,412.21 = 40,009.75 : x - Step 2: Convert to fraction form
71,537.92/107,412.21 = 40,009.75/x - Step 3: Cross multiply
71,537.92x = 107,412.21 × 40,009.75 - Step 4: Simplify right side
71,537.92x = 4,297,535,669.05 - Step 5: Solve for x
x = 4,297,535,669.05/71,537.92 - Step 6: Final answer
x = 60,073.53
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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.