Finding the Fourth Proportional to 79,057.36, 118,396.02 and 45,220.80
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Solution
The fourth proportional to 79,057.36, 118,396.02 and 45,220.80 is: 67,722.50
Step by Step Solution
- Step 1: Write the proportion equation
79,057.36 : 118,396.02 = 45,220.80 : x - Step 2: Convert to fraction form
79,057.36/118,396.02 = 45,220.80/x - Step 3: Cross multiply
79,057.36x = 118,396.02 × 45,220.80 - Step 4: Simplify right side
79,057.36x = 5,353,961,923.13 - Step 5: Solve for x
x = 5,353,961,923.13/79,057.36 - Step 6: Final answer
x = 67,722.50
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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.