Finding the Fourth Proportional to 83,684.10, 125,526.15 and 31,082.70
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Solution
The fourth proportional to 83,684.10, 125,526.15 and 31,082.70 is: 46,624.05
Step by Step Solution
- Step 1: Write the proportion equation
83,684.10 : 125,526.15 = 31,082.70 : x - Step 2: Convert to fraction form
83,684.10/125,526.15 = 31,082.70/x - Step 3: Cross multiply
83,684.10x = 125,526.15 × 31,082.70 - Step 4: Simplify right side
83,684.10x = 3,901,691,662.61 - Step 5: Solve for x
x = 3,901,691,662.61/83,684.10 - Step 6: Final answer
x = 46,624.05
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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.