Finding the Fourth Proportional to 68,756.55, 103,134.91 and 18,837.08
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Solution
The fourth proportional to 68,756.55, 103,134.91 and 18,837.08 is: 28,255.64
Step by Step Solution
- Step 1: Write the proportion equation
68,756.55 : 103,134.91 = 18,837.08 : x - Step 2: Convert to fraction form
68,756.55/103,134.91 = 18,837.08/x - Step 3: Cross multiply
68,756.55x = 103,134.91 × 18,837.08 - Step 4: Simplify right side
68,756.55x = 1,942,760,550.46 - Step 5: Solve for x
x = 1,942,760,550.46/68,756.55 - Step 6: Final answer
x = 28,255.64
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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.