Finding the Fourth Proportional to 81,373.40, 122,079.60 and 33,962.12
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Solution
The fourth proportional to 81,373.40, 122,079.60 and 33,962.12 is: 50,951.32
Step by Step Solution
- Step 1: Write the proportion equation
81,373.40 : 122,079.60 = 33,962.12 : x - Step 2: Convert to fraction form
81,373.40/122,079.60 = 33,962.12/x - Step 3: Cross multiply
81,373.40x = 122,079.60 × 33,962.12 - Step 4: Simplify right side
81,373.40x = 4,146,082,024.75 - Step 5: Solve for x
x = 4,146,082,024.75/81,373.40 - Step 6: Final answer
x = 50,951.32
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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.