Finding the Fourth Proportional to 73,893.12, 110,839.68 and 18,489.12
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Solution
The fourth proportional to 73,893.12, 110,839.68 and 18,489.12 is: 27,733.68
Step by Step Solution
- Step 1: Write the proportion equation
73,893.12 : 110,839.68 = 18,489.12 : x - Step 2: Convert to fraction form
73,893.12/110,839.68 = 18,489.12/x - Step 3: Cross multiply
73,893.12x = 110,839.68 × 18,489.12 - Step 4: Simplify right side
73,893.12x = 2,049,328,144.28 - Step 5: Solve for x
x = 2,049,328,144.28/73,893.12 - Step 6: Final answer
x = 27,733.68
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1.5x scale
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.