Finding the Fourth Proportional to 79,660.21, 119,564.16 and 40,245.07
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Solution
The fourth proportional to 79,660.21, 119,564.16 and 40,245.07 is: 60,404.91
Step by Step Solution
- Step 1: Write the proportion equation
79,660.21 : 119,564.16 = 40,245.07 : x - Step 2: Convert to fraction form
79,660.21/119,564.16 = 40,245.07/x - Step 3: Cross multiply
79,660.21x = 119,564.16 × 40,245.07 - Step 4: Simplify right side
79,660.21x = 4,811,867,988.69 - Step 5: Solve for x
x = 4,811,867,988.69/79,660.21 - Step 6: Final answer
x = 60,404.91
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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.