Finding the Fourth Proportional to 85,065.14, 117,389.94 and 49,257.05
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Solution
The fourth proportional to 85,065.14, 117,389.94 and 49,257.05 is: 67,974.76
Step by Step Solution
- Step 1: Write the proportion equation
85,065.14 : 117,389.94 = 49,257.05 : x - Step 2: Convert to fraction form
85,065.14/117,389.94 = 49,257.05/x - Step 3: Cross multiply
85,065.14x = 117,389.94 × 49,257.05 - Step 4: Simplify right side
85,065.14x = 5,782,282,144.08 - Step 5: Solve for x
x = 5,782,282,144.08/85,065.14 - Step 6: Final answer
x = 67,974.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.