Finding the Fourth Proportional to 76,744.67, 105,907.80 and 44,485.50
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Solution
The fourth proportional to 76,744.67, 105,907.80 and 44,485.50 is: 61,390.09
Step by Step Solution
- Step 1: Write the proportion equation
76,744.67 : 105,907.80 = 44,485.50 : x - Step 2: Convert to fraction form
76,744.67/105,907.80 = 44,485.50/x - Step 3: Cross multiply
76,744.67x = 105,907.80 × 44,485.50 - Step 4: Simplify right side
76,744.67x = 4,711,362,000.87 - Step 5: Solve for x
x = 4,711,362,000.87/76,744.67 - Step 6: Final answer
x = 61,390.09
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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.