Finding the Fourth Proportional to 67,022.73, 100,381.05 and 31,986.99
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Solution
The fourth proportional to 67,022.73, 100,381.05 and 31,986.99 is: 47,907.44
Step by Step Solution
- Step 1: Write the proportion equation
67,022.73 : 100,381.05 = 31,986.99 : x - Step 2: Convert to fraction form
67,022.73/100,381.05 = 31,986.99/x - Step 3: Cross multiply
67,022.73x = 100,381.05 × 31,986.99 - Step 4: Simplify right side
67,022.73x = 3,210,887,642.54 - Step 5: Solve for x
x = 3,210,887,642.54/67,022.73 - Step 6: Final answer
x = 47,907.44
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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.