Finding the Fourth Proportional to 71,512.37, 107,269.21 and 21,592.88
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Solution
The fourth proportional to 71,512.37, 107,269.21 and 21,592.88 is: 32,389.52
Step by Step Solution
- Step 1: Write the proportion equation
71,512.37 : 107,269.21 = 21,592.88 : x - Step 2: Convert to fraction form
71,512.37/107,269.21 = 21,592.88/x - Step 3: Cross multiply
71,512.37x = 107,269.21 × 21,592.88 - Step 4: Simplify right side
71,512.37x = 2,316,251,072.13 - Step 5: Solve for x
x = 2,316,251,072.13/71,512.37 - Step 6: Final answer
x = 32,389.52
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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.