Finding the Fourth Proportional to 75,328.99, 112,992.67 and 18,403.41
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Solution
The fourth proportional to 75,328.99, 112,992.67 and 18,403.41 is: 27,604.92
Step by Step Solution
- Step 1: Write the proportion equation
75,328.99 : 112,992.67 = 18,403.41 : x - Step 2: Convert to fraction form
75,328.99/112,992.67 = 18,403.41/x - Step 3: Cross multiply
75,328.99x = 112,992.67 × 18,403.41 - Step 4: Simplify right side
75,328.99x = 2,079,450,433.00 - Step 5: Solve for x
x = 2,079,450,433.00/75,328.99 - Step 6: Final answer
x = 27,604.92
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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.