Finding the Fourth Proportional to 77,289.15, 115,930.68 and 27,367.23
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Solution
The fourth proportional to 77,289.15, 115,930.68 and 27,367.23 is: 41,049.77
Step by Step Solution
- Step 1: Write the proportion equation
77,289.15 : 115,930.68 = 27,367.23 : x - Step 2: Convert to fraction form
77,289.15/115,930.68 = 27,367.23/x - Step 3: Cross multiply
77,289.15x = 115,930.68 × 27,367.23 - Step 4: Simplify right side
77,289.15x = 3,172,701,583.62 - Step 5: Solve for x
x = 3,172,701,583.62/77,289.15 - Step 6: Final answer
x = 41,049.77
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1.5x scale
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.