Finding the Fourth Proportional to 76,745.23, 105,908.58 and 44,486.07
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Solution
The fourth proportional to 76,745.23, 105,908.58 and 44,486.07 is: 61,390.87
Step by Step Solution
- Step 1: Write the proportion equation
76,745.23 : 105,908.58 = 44,486.07 : x - Step 2: Convert to fraction form
76,745.23/105,908.58 = 44,486.07/x - Step 3: Cross multiply
76,745.23x = 105,908.58 × 44,486.07 - Step 4: Simplify right side
76,745.23x = 4,711,456,106.32 - Step 5: Solve for x
x = 4,711,456,106.32/76,745.23 - Step 6: Final answer
x = 61,390.87
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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.