Finding the Fourth Proportional to 79,451.44, 119,177.04 and 20,287.12
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Solution
The fourth proportional to 79,451.44, 119,177.04 and 20,287.12 is: 30,430.65
Step by Step Solution
- Step 1: Write the proportion equation
79,451.44 : 119,177.04 = 20,287.12 : x - Step 2: Convert to fraction form
79,451.44/119,177.04 = 20,287.12/x - Step 3: Cross multiply
79,451.44x = 119,177.04 × 20,287.12 - Step 4: Simplify right side
79,451.44x = 2,417,758,911.72 - Step 5: Solve for x
x = 2,417,758,911.72/79,451.44 - Step 6: Final answer
x = 30,430.65
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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.