Finding the Fourth Proportional to 88,742.14, 122,469.12 and 48,459.64
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Solution
The fourth proportional to 88,742.14, 122,469.12 and 48,459.64 is: 66,877.02
Step by Step Solution
- Step 1: Write the proportion equation
88,742.14 : 122,469.12 = 48,459.64 : x - Step 2: Convert to fraction form
88,742.14/122,469.12 = 48,459.64/x - Step 3: Cross multiply
88,742.14x = 122,469.12 × 48,459.64 - Step 4: Simplify right side
88,742.14x = 5,934,809,466.32 - Step 5: Solve for x
x = 5,934,809,466.32/88,742.14 - Step 6: Final answer
x = 66,877.02
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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.