Finding the Fourth Proportional to 69,201.94, 103,722.26 and 31,765.96
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Solution
The fourth proportional to 69,201.94, 103,722.26 and 31,765.96 is: 47,611.92
Step by Step Solution
- Step 1: Write the proportion equation
69,201.94 : 103,722.26 = 31,765.96 : x - Step 2: Convert to fraction form
69,201.94/103,722.26 = 31,765.96/x - Step 3: Cross multiply
69,201.94x = 103,722.26 × 31,765.96 - Step 4: Simplify right side
69,201.94x = 3,294,837,003.44 - Step 5: Solve for x
x = 3,294,837,003.44/69,201.94 - Step 6: Final answer
x = 47,611.92
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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.