Finding the Fourth Proportional to 74,603.87, 111,939.65 and 68,297.08
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Solution
The fourth proportional to 74,603.87, 111,939.65 and 68,297.08 is: 102,476.59
Step by Step Solution
- Step 1: Write the proportion equation
74,603.87 : 111,939.65 = 68,297.08 : x - Step 2: Convert to fraction form
74,603.87/111,939.65 = 68,297.08/x - Step 3: Cross multiply
74,603.87x = 111,939.65 × 68,297.08 - Step 4: Simplify right side
74,603.87x = 7,645,150,330.04 - Step 5: Solve for x
x = 7,645,150,330.04/74,603.87 - Step 6: Final answer
x = 102,476.59
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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.