Finding the Fourth Proportional to 78,193.05, 107,820.82 and 58,087.23
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Solution
The fourth proportional to 78,193.05, 107,820.82 and 58,087.23 is: 80,096.80
Step by Step Solution
- Step 1: Write the proportion equation
78,193.05 : 107,820.82 = 58,087.23 : x - Step 2: Convert to fraction form
78,193.05/107,820.82 = 58,087.23/x - Step 3: Cross multiply
78,193.05x = 107,820.82 × 58,087.23 - Step 4: Simplify right side
78,193.05x = 6,263,012,770.13 - Step 5: Solve for x
x = 6,263,012,770.13/78,193.05 - Step 6: Final answer
x = 80,096.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.