Finding the Fourth Proportional to 71,037.30, 106,573.49 and 21,117.19
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Solution
The fourth proportional to 71,037.30, 106,573.49 and 21,117.19 is: 31,680.99
Step by Step Solution
- Step 1: Write the proportion equation
71,037.30 : 106,573.49 = 21,117.19 : x - Step 2: Convert to fraction form
71,037.30/106,573.49 = 21,117.19/x - Step 3: Cross multiply
71,037.30x = 106,573.49 × 21,117.19 - Step 4: Simplify right side
71,037.30x = 2,250,532,183.77 - Step 5: Solve for x
x = 2,250,532,183.77/71,037.30 - Step 6: Final answer
x = 31,680.99
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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.