Finding the Fourth Proportional to 103,991.21, 155,997.75 and 33,875.99
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Solution
The fourth proportional to 103,991.21, 155,997.75 and 33,875.99 is: 50,817.55
Step by Step Solution
- Step 1: Write the proportion equation
103,991.21 : 155,997.75 = 33,875.99 : x - Step 2: Convert to fraction form
103,991.21/155,997.75 = 33,875.99/x - Step 3: Cross multiply
103,991.21x = 155,997.75 × 33,875.99 - Step 4: Simplify right side
103,991.21x = 5,284,578,219.02 - Step 5: Solve for x
x = 5,284,578,219.02/103,991.21 - Step 6: Final answer
x = 50,817.55
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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.