Finding the Fourth Proportional to 71,907.08, 107,870.34 and 67,533.08
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Solution
The fourth proportional to 71,907.08, 107,870.34 and 67,533.08 is: 101,308.75
Step by Step Solution
- Step 1: Write the proportion equation
71,907.08 : 107,870.34 = 67,533.08 : x - Step 2: Convert to fraction form
71,907.08/107,870.34 = 67,533.08/x - Step 3: Cross multiply
71,907.08x = 107,870.34 × 67,533.08 - Step 4: Simplify right side
71,907.08x = 7,284,816,300.85 - Step 5: Solve for x
x = 7,284,816,300.85/71,907.08 - Step 6: Final answer
x = 101,308.75
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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.