Finding the Fourth Proportional to 79,620.07, 119,450.63 and 57,156.79
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Solution
The fourth proportional to 79,620.07, 119,450.63 and 57,156.79 is: 85,749.92
Step by Step Solution
- Step 1: Write the proportion equation
79,620.07 : 119,450.63 = 57,156.79 : x - Step 2: Convert to fraction form
79,620.07/119,450.63 = 57,156.79/x - Step 3: Cross multiply
79,620.07x = 119,450.63 × 57,156.79 - Step 4: Simplify right side
79,620.07x = 6,827,414,574.28 - Step 5: Solve for x
x = 6,827,414,574.28/79,620.07 - Step 6: Final answer
x = 85,749.92
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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.