Finding the Fourth Proportional to 79,450.74, 119,176.05 and 20,286.42
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Solution
The fourth proportional to 79,450.74, 119,176.05 and 20,286.42 is: 30,429.61
Step by Step Solution
- Step 1: Write the proportion equation
79,450.74 : 119,176.05 = 20,286.42 : x - Step 2: Convert to fraction form
79,450.74/119,176.05 = 20,286.42/x - Step 3: Cross multiply
79,450.74x = 119,176.05 × 20,286.42 - Step 4: Simplify right side
79,450.74x = 2,417,655,404.24 - Step 5: Solve for x
x = 2,417,655,404.24/79,450.74 - Step 6: Final answer
x = 30,429.61
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1.5x scale
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.