Finding the Fourth Proportional to 77,949.42, 116,882.49 and 40,471.74
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Solution
The fourth proportional to 77,949.42, 116,882.49 and 40,471.74 is: 60,685.99
Step by Step Solution
- Step 1: Write the proportion equation
77,949.42 : 116,882.49 = 40,471.74 : x - Step 2: Convert to fraction form
77,949.42/116,882.49 = 40,471.74/x - Step 3: Cross multiply
77,949.42x = 116,882.49 × 40,471.74 - Step 4: Simplify right side
77,949.42x = 4,730,437,745.83 - Step 5: Solve for x
x = 4,730,437,745.83/77,949.42 - Step 6: Final answer
x = 60,685.99
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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.