Finding the Fourth Proportional to 86,028.30, 118,738.04 and 47,800.99
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Solution
The fourth proportional to 86,028.30, 118,738.04 and 47,800.99 is: 65,975.90
Step by Step Solution
- Step 1: Write the proportion equation
86,028.30 : 118,738.04 = 47,800.99 : x - Step 2: Convert to fraction form
86,028.30/118,738.04 = 47,800.99/x - Step 3: Cross multiply
86,028.30x = 118,738.04 × 47,800.99 - Step 4: Simplify right side
86,028.30x = 5,675,795,104.18 - Step 5: Solve for x
x = 5,675,795,104.18/86,028.30 - Step 6: Final answer
x = 65,975.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.