Finding the Fourth Proportional to 71,148.48, 106,722.36 and 18,556.80
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Solution
The fourth proportional to 71,148.48, 106,722.36 and 18,556.80 is: 27,835.11
Step by Step Solution
- Step 1: Write the proportion equation
71,148.48 : 106,722.36 = 18,556.80 : x - Step 2: Convert to fraction form
71,148.48/106,722.36 = 18,556.80/x - Step 3: Cross multiply
71,148.48x = 106,722.36 × 18,556.80 - Step 4: Simplify right side
71,148.48x = 1,980,425,490.05 - Step 5: Solve for x
x = 1,980,425,490.05/71,148.48 - Step 6: Final answer
x = 27,835.11
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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.