Finding the Fourth Proportional to 79,491.65, 119,238.68 and 20,326.01
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Solution
The fourth proportional to 79,491.65, 119,238.68 and 20,326.01 is: 30,489.32
Step by Step Solution
- Step 1: Write the proportion equation
79,491.65 : 119,238.68 = 20,326.01 : x - Step 2: Convert to fraction form
79,491.65/119,238.68 = 20,326.01/x - Step 3: Cross multiply
79,491.65x = 119,238.68 × 20,326.01 - Step 4: Simplify right side
79,491.65x = 2,423,646,500.44 - Step 5: Solve for x
x = 2,423,646,500.44/79,491.65 - Step 6: Final answer
x = 30,489.32
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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.