Finding the Fourth Proportional to 71,221.21, 106,914.30 and 41,660.26
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Solution
The fourth proportional to 71,221.21, 106,914.30 and 41,660.26 is: 62,538.64
Step by Step Solution
- Step 1: Write the proportion equation
71,221.21 : 106,914.30 = 41,660.26 : x - Step 2: Convert to fraction form
71,221.21/106,914.30 = 41,660.26/x - Step 3: Cross multiply
71,221.21x = 106,914.30 × 41,660.26 - Step 4: Simplify right side
71,221.21x = 4,454,077,112.21 - Step 5: Solve for x
x = 4,454,077,112.21/71,221.21 - Step 6: Final answer
x = 62,538.64
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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.