Finding the Fourth Proportional to 71,638.30, 107,420.52 and 32,161.60
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Solution
The fourth proportional to 71,638.30, 107,420.52 and 32,161.60 is: 48,225.82
Step by Step Solution
- Step 1: Write the proportion equation
71,638.30 : 107,420.52 = 32,161.60 : x - Step 2: Convert to fraction form
71,638.30/107,420.52 = 32,161.60/x - Step 3: Cross multiply
71,638.30x = 107,420.52 × 32,161.60 - Step 4: Simplify right side
71,638.30x = 3,454,815,796.03 - Step 5: Solve for x
x = 3,454,815,796.03/71,638.30 - Step 6: Final answer
x = 48,225.82
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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.