Finding the Fourth Proportional to 71,889.87, 107,783.23 and 27,479.19
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Solution
The fourth proportional to 71,889.87, 107,783.23 and 27,479.19 is: 41,199.07
Step by Step Solution
- Step 1: Write the proportion equation
71,889.87 : 107,783.23 = 27,479.19 : x - Step 2: Convert to fraction form
71,889.87/107,783.23 = 27,479.19/x - Step 3: Cross multiply
71,889.87x = 107,783.23 × 27,479.19 - Step 4: Simplify right side
71,889.87x = 2,961,795,855.98 - Step 5: Solve for x
x = 2,961,795,855.98/71,889.87 - Step 6: Final answer
x = 41,199.07
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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.