Finding the Fourth Proportional to 79,971.76, 110,360.20 and 44,163.28
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Solution
The fourth proportional to 79,971.76, 110,360.20 and 44,163.28 is: 60,944.87
Step by Step Solution
- Step 1: Write the proportion equation
79,971.76 : 110,360.20 = 44,163.28 : x - Step 2: Convert to fraction form
79,971.76/110,360.20 = 44,163.28/x - Step 3: Cross multiply
79,971.76x = 110,360.20 × 44,163.28 - Step 4: Simplify right side
79,971.76x = 4,873,868,413.46 - Step 5: Solve for x
x = 4,873,868,413.46/79,971.76 - Step 6: Final answer
x = 60,944.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.