Finding the Fourth Proportional to 79,138.56, 118,765.92 and 63,742.08
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Solution
The fourth proportional to 79,138.56, 118,765.92 and 63,742.08 is: 95,659.90
Step by Step Solution
- Step 1: Write the proportion equation
79,138.56 : 118,765.92 = 63,742.08 : x - Step 2: Convert to fraction form
79,138.56/118,765.92 = 63,742.08/x - Step 3: Cross multiply
79,138.56x = 118,765.92 × 63,742.08 - Step 4: Simplify right side
79,138.56x = 7,570,386,773.91 - Step 5: Solve for x
x = 7,570,386,773.91/79,138.56 - Step 6: Final answer
x = 95,659.90
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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.