Finding the Fourth Proportional to 68,237.91, 102,372.44 and 20,859.75
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Solution
The fourth proportional to 68,237.91, 102,372.44 and 20,859.75 is: 31,294.38
Step by Step Solution
- Step 1: Write the proportion equation
68,237.91 : 102,372.44 = 20,859.75 : x - Step 2: Convert to fraction form
68,237.91/102,372.44 = 20,859.75/x - Step 3: Cross multiply
68,237.91x = 102,372.44 × 20,859.75 - Step 4: Simplify right side
68,237.91x = 2,135,463,400.99 - Step 5: Solve for x
x = 2,135,463,400.99/68,237.91 - Step 6: Final answer
x = 31,294.38
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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.