Finding the Fourth Proportional to 74,072.21, 111,077.46 and 45,950.09
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Solution
The fourth proportional to 74,072.21, 111,077.46 and 45,950.09 is: 68,905.99
Step by Step Solution
- Step 1: Write the proportion equation
74,072.21 : 111,077.46 = 45,950.09 : x - Step 2: Convert to fraction form
74,072.21/111,077.46 = 45,950.09/x - Step 3: Cross multiply
74,072.21x = 111,077.46 × 45,950.09 - Step 4: Simplify right side
74,072.21x = 5,104,018,728.58 - Step 5: Solve for x
x = 5,104,018,728.58/74,072.21 - Step 6: Final answer
x = 68,905.99
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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.