Finding the Fourth Proportional to 68,178.36, 102,267.41 and 30,694.63
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Solution
The fourth proportional to 68,178.36, 102,267.41 and 30,694.63 is: 46,041.89
Step by Step Solution
- Step 1: Write the proportion equation
68,178.36 : 102,267.41 = 30,694.63 : x - Step 2: Convert to fraction form
68,178.36/102,267.41 = 30,694.63/x - Step 3: Cross multiply
68,178.36x = 102,267.41 × 30,694.63 - Step 4: Simplify right side
68,178.36x = 3,139,060,311.01 - Step 5: Solve for x
x = 3,139,060,311.01/68,178.36 - Step 6: Final answer
x = 46,041.89
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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.