Finding the Fourth Proportional to 81,371.40, 122,076.60 and 33,960.12
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Solution
The fourth proportional to 81,371.40, 122,076.60 and 33,960.12 is: 50,948.32
Step by Step Solution
- Step 1: Write the proportion equation
81,371.40 : 122,076.60 = 33,960.12 : x - Step 2: Convert to fraction form
81,371.40/122,076.60 = 33,960.12/x - Step 3: Cross multiply
81,371.40x = 122,076.60 × 33,960.12 - Step 4: Simplify right side
81,371.40x = 4,145,735,985.19 - Step 5: Solve for x
x = 4,145,735,985.19/81,371.40 - Step 6: Final answer
x = 50,948.32
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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.