Finding the Fourth Proportional to 66,201.75, 91,358.55 and 36,393.75
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Solution
The fourth proportional to 66,201.75, 91,358.55 and 36,393.75 is: 50,223.45
Step by Step Solution
- Step 1: Write the proportion equation
66,201.75 : 91,358.55 = 36,393.75 : x - Step 2: Convert to fraction form
66,201.75/91,358.55 = 36,393.75/x - Step 3: Cross multiply
66,201.75x = 91,358.55 × 36,393.75 - Step 4: Simplify right side
66,201.75x = 3,324,880,229.06 - Step 5: Solve for x
x = 3,324,880,229.06/66,201.75 - Step 6: Final answer
x = 50,223.45
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1.5x scale
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.