Finding the Fourth Proportional to 81,521.23, 122,316.99 and 44,107.60
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Solution
The fourth proportional to 81,521.23, 122,316.99 and 44,107.60 is: 66,180.42
Step by Step Solution
- Step 1: Write the proportion equation
81,521.23 : 122,316.99 = 44,107.60 : x - Step 2: Convert to fraction form
81,521.23/122,316.99 = 44,107.60/x - Step 3: Cross multiply
81,521.23x = 122,316.99 × 44,107.60 - Step 4: Simplify right side
81,521.23x = 5,395,108,868.12 - Step 5: Solve for x
x = 5,395,108,868.12/81,521.23 - Step 6: Final answer
x = 66,180.42
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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.