Finding the Fourth Proportional to 83,211.75, 124,817.63 and 27,807.75
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Solution
The fourth proportional to 83,211.75, 124,817.63 and 27,807.75 is: 41,711.63
Step by Step Solution
- Step 1: Write the proportion equation
83,211.75 : 124,817.63 = 27,807.75 : x - Step 2: Convert to fraction form
83,211.75/124,817.63 = 27,807.75/x - Step 3: Cross multiply
83,211.75x = 124,817.63 × 27,807.75 - Step 4: Simplify right side
83,211.75x = 3,470,897,450.63 - Step 5: Solve for x
x = 3,470,897,450.63/83,211.75 - Step 6: Final answer
x = 41,711.63
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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.