Finding the Fourth Proportional to 68,069.97, 102,018.69 and 30,590.06
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Solution
The fourth proportional to 68,069.97, 102,018.69 and 30,590.06 is: 45,846.32
Step by Step Solution
- Step 1: Write the proportion equation
68,069.97 : 102,018.69 = 30,590.06 : x - Step 2: Convert to fraction form
68,069.97/102,018.69 = 30,590.06/x - Step 3: Cross multiply
68,069.97x = 102,018.69 × 30,590.06 - Step 4: Simplify right side
68,069.97x = 3,120,757,338.13 - Step 5: Solve for x
x = 3,120,757,338.13/68,069.97 - Step 6: Final answer
x = 45,846.32
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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.