Finding the Fourth Proportional to 71,660.55, 107,493.26 and 19,070.09
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Solution
The fourth proportional to 71,660.55, 107,493.26 and 19,070.09 is: 28,605.78
Step by Step Solution
- Step 1: Write the proportion equation
71,660.55 : 107,493.26 = 19,070.09 : x - Step 2: Convert to fraction form
71,660.55/107,493.26 = 19,070.09/x - Step 3: Cross multiply
71,660.55x = 107,493.26 × 19,070.09 - Step 4: Simplify right side
71,660.55x = 2,049,906,142.59 - Step 5: Solve for x
x = 2,049,906,142.59/71,660.55 - Step 6: Final answer
x = 28,605.78
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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.