Finding the Fourth Proportional to 103,511.76, 155,267.57 and 33,391.08
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Solution
The fourth proportional to 103,511.76, 155,267.57 and 33,391.08 is: 50,086.59
Step by Step Solution
- Step 1: Write the proportion equation
103,511.76 : 155,267.57 = 33,391.08 : x - Step 2: Convert to fraction form
103,511.76/155,267.57 = 33,391.08/x - Step 3: Cross multiply
103,511.76x = 155,267.57 × 33,391.08 - Step 4: Simplify right side
103,511.76x = 5,184,550,907.98 - Step 5: Solve for x
x = 5,184,550,907.98/103,511.76 - Step 6: Final answer
x = 50,086.59
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1.5x scale
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.