Finding the Fourth Proportional to 42,198.20, 58,234.74 and 23,079.08
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Solution
The fourth proportional to 42,198.20, 58,234.74 and 23,079.08 is: 31,849.80
Step by Step Solution
- Step 1: Write the proportion equation
42,198.20 : 58,234.74 = 23,079.08 : x - Step 2: Convert to fraction form
42,198.20/58,234.74 = 23,079.08/x - Step 3: Cross multiply
42,198.20x = 58,234.74 × 23,079.08 - Step 4: Simplify right side
42,198.20x = 1,344,004,223.24 - Step 5: Solve for x
x = 1,344,004,223.24/42,198.20 - Step 6: Final answer
x = 31,849.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.