Finding the Fourth Proportional to 71,410.24, 107,115.74 and 21,489.99
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Solution
The fourth proportional to 71,410.24, 107,115.74 and 21,489.99 is: 32,235.11
Step by Step Solution
- Step 1: Write the proportion equation
71,410.24 : 107,115.74 = 21,489.99 : x - Step 2: Convert to fraction form
71,410.24/107,115.74 = 21,489.99/x - Step 3: Cross multiply
71,410.24x = 107,115.74 × 21,489.99 - Step 4: Simplify right side
71,410.24x = 2,301,916,556.26 - Step 5: Solve for x
x = 2,301,916,556.26/71,410.24 - Step 6: Final answer
x = 32,235.11
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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.