Finding the Fourth Proportional to 73,885.12, 110,827.68 and 18,481.12
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Solution
The fourth proportional to 73,885.12, 110,827.68 and 18,481.12 is: 27,721.68
Step by Step Solution
- Step 1: Write the proportion equation
73,885.12 : 110,827.68 = 18,481.12 : x - Step 2: Convert to fraction form
73,885.12/110,827.68 = 18,481.12/x - Step 3: Cross multiply
73,885.12x = 110,827.68 × 18,481.12 - Step 4: Simplify right side
73,885.12x = 2,048,219,653.40 - Step 5: Solve for x
x = 2,048,219,653.40/73,885.12 - Step 6: Final answer
x = 27,721.68
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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.