Finding the Fourth Proportional to 88,942.68, 122,739.54 and 48,655.44
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Solution
The fourth proportional to 88,942.68, 122,739.54 and 48,655.44 is: 67,143.76
Step by Step Solution
- Step 1: Write the proportion equation
88,942.68 : 122,739.54 = 48,655.44 : x - Step 2: Convert to fraction form
88,942.68/122,739.54 = 48,655.44/x - Step 3: Cross multiply
88,942.68x = 122,739.54 × 48,655.44 - Step 4: Simplify right side
88,942.68x = 5,971,946,324.10 - Step 5: Solve for x
x = 5,971,946,324.10/88,942.68 - Step 6: Final answer
x = 67,143.76
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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.