Finding the Fourth Proportional to 71,760.07, 107,640.64 and 25,012.99
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Solution
The fourth proportional to 71,760.07, 107,640.64 and 25,012.99 is: 37,519.67
Step by Step Solution
- Step 1: Write the proportion equation
71,760.07 : 107,640.64 = 25,012.99 : x - Step 2: Convert to fraction form
71,760.07/107,640.64 = 25,012.99/x - Step 3: Cross multiply
71,760.07x = 107,640.64 × 25,012.99 - Step 4: Simplify right side
71,760.07x = 2,692,413,713.71 - Step 5: Solve for x
x = 2,692,413,713.71/71,760.07 - Step 6: Final answer
x = 37,519.67
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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.