Finding the Fourth Proportional to 84,005.20, 125,748.60 and 48,840.40
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Solution
The fourth proportional to 84,005.20, 125,748.60 and 48,840.40 is: 73,109.90
Step by Step Solution
- Step 1: Write the proportion equation
84,005.20 : 125,748.60 = 48,840.40 : x - Step 2: Convert to fraction form
84,005.20/125,748.60 = 48,840.40/x - Step 3: Cross multiply
84,005.20x = 125,748.60 × 48,840.40 - Step 4: Simplify right side
84,005.20x = 6,141,611,923.44 - Step 5: Solve for x
x = 6,141,611,923.44/84,005.20 - Step 6: Final answer
x = 73,109.90
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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.