Finding the Fourth Proportional to 79,621.80, 119,398.68 and 27,007.44
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Solution
The fourth proportional to 79,621.80, 119,398.68 and 27,007.44 is: 40,499.62
Step by Step Solution
- Step 1: Write the proportion equation
79,621.80 : 119,398.68 = 27,007.44 : x - Step 2: Convert to fraction form
79,621.80/119,398.68 = 27,007.44/x - Step 3: Cross multiply
79,621.80x = 119,398.68 × 27,007.44 - Step 4: Simplify right side
79,621.80x = 3,224,652,686.18 - Step 5: Solve for x
x = 3,224,652,686.18/79,621.80 - Step 6: Final answer
x = 40,499.62
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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.