Finding the Fourth Proportional to 71,887.84, 107,851.28 and 40,744.96
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Solution
The fourth proportional to 71,887.84, 107,851.28 and 40,744.96 is: 61,128.50
Step by Step Solution
- Step 1: Write the proportion equation
71,887.84 : 107,851.28 = 40,744.96 : x - Step 2: Convert to fraction form
71,887.84/107,851.28 = 40,744.96/x - Step 3: Cross multiply
71,887.84x = 107,851.28 × 40,744.96 - Step 4: Simplify right side
71,887.84x = 4,394,396,089.55 - Step 5: Solve for x
x = 4,394,396,089.55/71,887.84 - Step 6: Final answer
x = 61,128.50
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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.