Finding the Fourth Proportional to 129,284.51, 193,811.94 and 50,454.09
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Solution
The fourth proportional to 129,284.51, 193,811.94 and 50,454.09 is: 75,636.33
Step by Step Solution
- Step 1: Write the proportion equation
129,284.51 : 193,811.94 = 50,454.09 : x - Step 2: Convert to fraction form
129,284.51/193,811.94 = 50,454.09/x - Step 3: Cross multiply
129,284.51x = 193,811.94 × 50,454.09 - Step 4: Simplify right side
129,284.51x = 9,778,605,063.83 - Step 5: Solve for x
x = 9,778,605,063.83/129,284.51 - Step 6: Final answer
x = 75,636.33
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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.