Finding the Fourth Proportional to 78,349.14, 117,528.71 and 22,193.70
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Solution
The fourth proportional to 78,349.14, 117,528.71 and 22,193.70 is: 33,291.96
Step by Step Solution
- Step 1: Write the proportion equation
78,349.14 : 117,528.71 = 22,193.70 : x - Step 2: Convert to fraction form
78,349.14/117,528.71 = 22,193.70/x - Step 3: Cross multiply
78,349.14x = 117,528.71 × 22,193.70 - Step 4: Simplify right side
78,349.14x = 2,608,396,820.16 - Step 5: Solve for x
x = 2,608,396,820.16/78,349.14 - Step 6: Final answer
x = 33,291.96
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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.