Finding the Fourth Proportional to 69,559.26, 104,351.86 and 31,611.20
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Solution
The fourth proportional to 69,559.26, 104,351.86 and 31,611.20 is: 47,422.69
Step by Step Solution
- Step 1: Write the proportion equation
69,559.26 : 104,351.86 = 31,611.20 : x - Step 2: Convert to fraction form
69,559.26/104,351.86 = 31,611.20/x - Step 3: Cross multiply
69,559.26x = 104,351.86 × 31,611.20 - Step 4: Simplify right side
69,559.26x = 3,298,687,034.59 - Step 5: Solve for x
x = 3,298,687,034.59/69,559.26 - Step 6: Final answer
x = 47,422.69
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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.