Finding the Fourth Proportional to 78,070.44, 117,021.84 and 33,718.08
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Solution
The fourth proportional to 78,070.44, 117,021.84 and 33,718.08 is: 50,540.92
Step by Step Solution
- Step 1: Write the proportion equation
78,070.44 : 117,021.84 = 33,718.08 : x - Step 2: Convert to fraction form
78,070.44/117,021.84 = 33,718.08/x - Step 3: Cross multiply
78,070.44x = 117,021.84 × 33,718.08 - Step 4: Simplify right side
78,070.44x = 3,945,751,762.87 - Step 5: Solve for x
x = 3,945,751,762.87/78,070.44 - Step 6: Final answer
x = 50,540.92
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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.