Finding the Fourth Proportional to 89,069.44, 122,915.84 and 48,783.30
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Solution
The fourth proportional to 89,069.44, 122,915.84 and 48,783.30 is: 67,320.96
Step by Step Solution
- Step 1: Write the proportion equation
89,069.44 : 122,915.84 = 48,783.30 : x - Step 2: Convert to fraction form
89,069.44/122,915.84 = 48,783.30/x - Step 3: Cross multiply
89,069.44x = 122,915.84 × 48,783.30 - Step 4: Simplify right side
89,069.44x = 5,996,240,297.47 - Step 5: Solve for x
x = 5,996,240,297.47/89,069.44 - Step 6: Final answer
x = 67,320.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.