Finding the Fourth Proportional to 74,851.01, 103,311.74 and 49,361.99
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Solution
The fourth proportional to 74,851.01, 103,311.74 and 49,361.99 is: 68,130.98
Step by Step Solution
- Step 1: Write the proportion equation
74,851.01 : 103,311.74 = 49,361.99 : x - Step 2: Convert to fraction form
74,851.01/103,311.74 = 49,361.99/x - Step 3: Cross multiply
74,851.01x = 103,311.74 × 49,361.99 - Step 4: Simplify right side
74,851.01x = 5,099,672,683.61 - Step 5: Solve for x
x = 5,099,672,683.61/74,851.01 - Step 6: Final answer
x = 68,130.98
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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.