Finding the Fourth Proportional to 78,223.08, 117,338.24 and 22,819.08
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Solution
The fourth proportional to 78,223.08, 117,338.24 and 22,819.08 is: 34,229.68
Step by Step Solution
- Step 1: Write the proportion equation
78,223.08 : 117,338.24 = 22,819.08 : x - Step 2: Convert to fraction form
78,223.08/117,338.24 = 22,819.08/x - Step 3: Cross multiply
78,223.08x = 117,338.24 × 22,819.08 - Step 4: Simplify right side
78,223.08x = 2,677,550,685.62 - Step 5: Solve for x
x = 2,677,550,685.62/78,223.08 - Step 6: Final answer
x = 34,229.68
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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.