Finding the Fourth Proportional to 74,438.20, 111,657.30 and 44,913.70
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Solution
The fourth proportional to 74,438.20, 111,657.30 and 44,913.70 is: 67,370.55
Step by Step Solution
- Step 1: Write the proportion equation
74,438.20 : 111,657.30 = 44,913.70 : x - Step 2: Convert to fraction form
74,438.20/111,657.30 = 44,913.70/x - Step 3: Cross multiply
74,438.20x = 111,657.30 × 44,913.70 - Step 4: Simplify right side
74,438.20x = 5,014,942,475.01 - Step 5: Solve for x
x = 5,014,942,475.01/74,438.20 - Step 6: Final answer
x = 67,370.55
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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.