Finding the Fourth Proportional to 86,361.48, 119,178.36 and 48,121.20
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Solution
The fourth proportional to 86,361.48, 119,178.36 and 48,121.20 is: 66,406.99
Step by Step Solution
- Step 1: Write the proportion equation
86,361.48 : 119,178.36 = 48,121.20 : x - Step 2: Convert to fraction form
86,361.48/119,178.36 = 48,121.20/x - Step 3: Cross multiply
86,361.48x = 119,178.36 × 48,121.20 - Step 4: Simplify right side
86,361.48x = 5,735,005,697.23 - Step 5: Solve for x
x = 5,735,005,697.23/86,361.48 - Step 6: Final answer
x = 66,406.99
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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.