Finding the Fourth Proportional to 91,234.71, 125,860.19 and 57,226.14
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Solution
The fourth proportional to 91,234.71, 125,860.19 and 57,226.14 is: 78,944.65
Step by Step Solution
- Step 1: Write the proportion equation
91,234.71 : 125,860.19 = 57,226.14 : x - Step 2: Convert to fraction form
91,234.71/125,860.19 = 57,226.14/x - Step 3: Cross multiply
91,234.71x = 125,860.19 × 57,226.14 - Step 4: Simplify right side
91,234.71x = 7,202,492,567.24 - Step 5: Solve for x
x = 7,202,492,567.24/91,234.71 - Step 6: Final answer
x = 78,944.65
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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.