Finding the Fourth Proportional to 68,844.68, 103,269.56 and 18,928.68
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Solution
The fourth proportional to 68,844.68, 103,269.56 and 18,928.68 is: 28,393.72
Step by Step Solution
- Step 1: Write the proportion equation
68,844.68 : 103,269.56 = 18,928.68 : x - Step 2: Convert to fraction form
68,844.68/103,269.56 = 18,928.68/x - Step 3: Cross multiply
68,844.68x = 103,269.56 × 18,928.68 - Step 4: Simplify right side
68,844.68x = 1,954,756,360.34 - Step 5: Solve for x
x = 1,954,756,360.34/68,844.68 - Step 6: Final answer
x = 28,393.72
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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.