Finding the Fourth Proportional to 72,213.09, 108,322.47 and 22,288.74
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Solution
The fourth proportional to 72,213.09, 108,322.47 and 22,288.74 is: 33,433.99
Step by Step Solution
- Step 1: Write the proportion equation
72,213.09 : 108,322.47 = 22,288.74 : x - Step 2: Convert to fraction form
72,213.09/108,322.47 = 22,288.74/x - Step 3: Cross multiply
72,213.09x = 108,322.47 × 22,288.74 - Step 4: Simplify right side
72,213.09x = 2,414,371,369.99 - Step 5: Solve for x
x = 2,414,371,369.99/72,213.09 - Step 6: Final answer
x = 33,433.99
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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.