Finding the Fourth Proportional to 87,529.68, 120,790.80 and 49,804.02
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Solution
The fourth proportional to 87,529.68, 120,790.80 and 49,804.02 is: 68,729.46
Step by Step Solution
- Step 1: Write the proportion equation
87,529.68 : 120,790.80 = 49,804.02 : x - Step 2: Convert to fraction form
87,529.68/120,790.80 = 49,804.02/x - Step 3: Cross multiply
87,529.68x = 120,790.80 × 49,804.02 - Step 4: Simplify right side
87,529.68x = 6,015,867,419.02 - Step 5: Solve for x
x = 6,015,867,419.02/87,529.68 - Step 6: Final answer
x = 68,729.46
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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.