Finding the Fourth Proportional to 68,752.08, 103,128.18 and 18,832.68
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Solution
The fourth proportional to 68,752.08, 103,128.18 and 18,832.68 is: 28,249.04
Step by Step Solution
- Step 1: Write the proportion equation
68,752.08 : 103,128.18 = 18,832.68 : x - Step 2: Convert to fraction form
68,752.08/103,128.18 = 18,832.68/x - Step 3: Cross multiply
68,752.08x = 103,128.18 × 18,832.68 - Step 4: Simplify right side
68,752.08x = 1,942,180,012.92 - Step 5: Solve for x
x = 1,942,180,012.92/68,752.08 - Step 6: Final answer
x = 28,249.04
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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.