Finding the Fourth Proportional to 78,619.91, 117,907.97 and 26,033.49
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Solution
The fourth proportional to 78,619.91, 117,907.97 and 26,033.49 is: 39,042.99
Step by Step Solution
- Step 1: Write the proportion equation
78,619.91 : 117,907.97 = 26,033.49 : x - Step 2: Convert to fraction form
78,619.91/117,907.97 = 26,033.49/x - Step 3: Cross multiply
78,619.91x = 117,907.97 × 26,033.49 - Step 4: Simplify right side
78,619.91x = 3,069,555,827.75 - Step 5: Solve for x
x = 3,069,555,827.75/78,619.91 - Step 6: Final answer
x = 39,042.99
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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.