Finding the Fourth Proportional to 72,055.99, 108,087.09 and 22,138.03
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Solution
The fourth proportional to 72,055.99, 108,087.09 and 22,138.03 is: 33,207.99
Step by Step Solution
- Step 1: Write the proportion equation
72,055.99 : 108,087.09 = 22,138.03 : x - Step 2: Convert to fraction form
72,055.99/108,087.09 = 22,138.03/x - Step 3: Cross multiply
72,055.99x = 108,087.09 × 22,138.03 - Step 4: Simplify right side
72,055.99x = 2,392,834,589.91 - Step 5: Solve for x
x = 2,392,834,589.91/72,055.99 - Step 6: Final answer
x = 33,207.99
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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.