Finding the Fourth Proportional to 76,440.96, 105,495.12 and 44,620.08
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Solution
The fourth proportional to 76,440.96, 105,495.12 and 44,620.08 is: 61,579.56
Step by Step Solution
- Step 1: Write the proportion equation
76,440.96 : 105,495.12 = 44,620.08 : x - Step 2: Convert to fraction form
76,440.96/105,495.12 = 44,620.08/x - Step 3: Cross multiply
76,440.96x = 105,495.12 × 44,620.08 - Step 4: Simplify right side
76,440.96x = 4,707,200,694.01 - Step 5: Solve for x
x = 4,707,200,694.01/76,440.96 - Step 6: Final answer
x = 61,579.56
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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.