Finding the Fourth Proportional to 71,588.39, 107,351.26 and 29,440.31
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Solution
The fourth proportional to 71,588.39, 107,351.26 and 29,440.31 is: 44,147.58
Step by Step Solution
- Step 1: Write the proportion equation
71,588.39 : 107,351.26 = 29,440.31 : x - Step 2: Convert to fraction form
71,588.39/107,351.26 = 29,440.31/x - Step 3: Cross multiply
71,588.39x = 107,351.26 × 29,440.31 - Step 4: Simplify right side
71,588.39x = 3,160,453,762.93 - Step 5: Solve for x
x = 3,160,453,762.93/71,588.39 - Step 6: Final answer
x = 44,147.58
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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.