Finding the Fourth Proportional to 69,137.28, 103,707.84 and 19,217.44
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Solution
The fourth proportional to 69,137.28, 103,707.84 and 19,217.44 is: 28,826.69
Step by Step Solution
- Step 1: Write the proportion equation
69,137.28 : 103,707.84 = 19,217.44 : x - Step 2: Convert to fraction form
69,137.28/103,707.84 = 19,217.44/x - Step 3: Cross multiply
69,137.28x = 103,707.84 × 19,217.44 - Step 4: Simplify right side
69,137.28x = 1,992,999,192.73 - Step 5: Solve for x
x = 1,992,999,192.73/69,137.28 - Step 6: Final answer
x = 28,826.69
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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.