Finding the Fourth Proportional to 80,477.33, 120,718.53 and 38,361.99
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Solution
The fourth proportional to 80,477.33, 120,718.53 and 38,361.99 is: 57,544.19
Step by Step Solution
- Step 1: Write the proportion equation
80,477.33 : 120,718.53 = 38,361.99 : x - Step 2: Convert to fraction form
80,477.33/120,718.53 = 38,361.99/x - Step 3: Cross multiply
80,477.33x = 120,718.53 × 38,361.99 - Step 4: Simplify right side
80,477.33x = 4,631,003,040.67 - Step 5: Solve for x
x = 4,631,003,040.67/80,477.33 - Step 6: Final answer
x = 57,544.19
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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.