Finding the Fourth Proportional to 80,381.93, 120,564.33 and 33,001.99
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Solution
The fourth proportional to 80,381.93, 120,564.33 and 33,001.99 is: 49,499.47
Step by Step Solution
- Step 1: Write the proportion equation
80,381.93 : 120,564.33 = 33,001.99 : x - Step 2: Convert to fraction form
80,381.93/120,564.33 = 33,001.99/x - Step 3: Cross multiply
80,381.93x = 120,564.33 × 33,001.99 - Step 4: Simplify right side
80,381.93x = 3,978,862,813.02 - Step 5: Solve for x
x = 3,978,862,813.02/80,381.93 - Step 6: Final answer
x = 49,499.47
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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.