Finding the Fourth Proportional to 68,853.20, 103,249.08 and 19,593.68
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Solution
The fourth proportional to 68,853.20, 103,249.08 and 19,593.68 is: 29,381.78
Step by Step Solution
- Step 1: Write the proportion equation
68,853.20 : 103,249.08 = 19,593.68 : x - Step 2: Convert to fraction form
68,853.20/103,249.08 = 19,593.68/x - Step 3: Cross multiply
68,853.20x = 103,249.08 × 19,593.68 - Step 4: Simplify right side
68,853.20x = 2,023,029,433.81 - Step 5: Solve for x
x = 2,023,029,433.81/68,853.20 - Step 6: Final answer
x = 29,381.78
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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.