Finding the Fourth Proportional to 75,168.05, 103,682.07 and 48,344.49
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Solution
The fourth proportional to 75,168.05, 103,682.07 and 48,344.49 is: 66,683.34
Step by Step Solution
- Step 1: Write the proportion equation
75,168.05 : 103,682.07 = 48,344.49 : x - Step 2: Convert to fraction form
75,168.05/103,682.07 = 48,344.49/x - Step 3: Cross multiply
75,168.05x = 103,682.07 × 48,344.49 - Step 4: Simplify right side
75,168.05x = 5,012,456,796.29 - Step 5: Solve for x
x = 5,012,456,796.29/75,168.05 - Step 6: Final answer
x = 66,683.34
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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.