Finding the Fourth Proportional to 68,271.81, 102,338.86 and 28,235.53
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Solution
The fourth proportional to 68,271.81, 102,338.86 and 28,235.53 is: 42,324.82
Step by Step Solution
- Step 1: Write the proportion equation
68,271.81 : 102,338.86 = 28,235.53 : x - Step 2: Convert to fraction form
68,271.81/102,338.86 = 28,235.53/x - Step 3: Cross multiply
68,271.81x = 102,338.86 × 28,235.53 - Step 4: Simplify right side
68,271.81x = 2,889,591,951.70 - Step 5: Solve for x
x = 2,889,591,951.70/68,271.81 - Step 6: Final answer
x = 42,324.82
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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.