Finding the Fourth Proportional to 79,675.26, 119,511.81 and 27,121.38
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Solution
The fourth proportional to 79,675.26, 119,511.81 and 27,121.38 is: 40,681.70
Step by Step Solution
- Step 1: Write the proportion equation
79,675.26 : 119,511.81 = 27,121.38 : x - Step 2: Convert to fraction form
79,675.26/119,511.81 = 27,121.38/x - Step 3: Cross multiply
79,675.26x = 119,511.81 × 27,121.38 - Step 4: Simplify right side
79,675.26x = 3,241,325,213.50 - Step 5: Solve for x
x = 3,241,325,213.50/79,675.26 - Step 6: Final answer
x = 40,681.70
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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.