Finding the Fourth Proportional to 68,682.69, 102,890.37 and 50,638.05
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Solution
The fourth proportional to 68,682.69, 102,890.37 and 50,638.05 is: 75,858.53
Step by Step Solution
- Step 1: Write the proportion equation
68,682.69 : 102,890.37 = 50,638.05 : x - Step 2: Convert to fraction form
68,682.69/102,890.37 = 50,638.05/x - Step 3: Cross multiply
68,682.69x = 102,890.37 × 50,638.05 - Step 4: Simplify right side
68,682.69x = 5,210,167,700.58 - Step 5: Solve for x
x = 5,210,167,700.58/68,682.69 - Step 6: Final answer
x = 75,858.53
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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.