Finding the Fourth Proportional to 76,809.15, 115,229.40 and 43,544.07
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Solution
The fourth proportional to 76,809.15, 115,229.40 and 43,544.07 is: 65,324.99
Step by Step Solution
- Step 1: Write the proportion equation
76,809.15 : 115,229.40 = 43,544.07 : x - Step 2: Convert to fraction form
76,809.15/115,229.40 = 43,544.07/x - Step 3: Cross multiply
76,809.15x = 115,229.40 × 43,544.07 - Step 4: Simplify right side
76,809.15x = 5,017,557,059.66 - Step 5: Solve for x
x = 5,017,557,059.66/76,809.15 - Step 6: Final answer
x = 65,324.99
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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.