Finding the Fourth Proportional to 74,896.20, 112,052.70 and 48,652.20
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Solution
The fourth proportional to 74,896.20, 112,052.70 and 48,652.20 is: 72,788.88
Step by Step Solution
- Step 1: Write the proportion equation
74,896.20 : 112,052.70 = 48,652.20 : x - Step 2: Convert to fraction form
74,896.20/112,052.70 = 48,652.20/x - Step 3: Cross multiply
74,896.20x = 112,052.70 × 48,652.20 - Step 4: Simplify right side
74,896.20x = 5,451,610,370.94 - Step 5: Solve for x
x = 5,451,610,370.94/74,896.20 - Step 6: Final answer
x = 72,788.88
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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.