Finding the Fourth Proportional to 86,615.84, 119,527.44 and 48,893.60
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Solution
The fourth proportional to 86,615.84, 119,527.44 and 48,893.60 is: 67,471.80
Step by Step Solution
- Step 1: Write the proportion equation
86,615.84 : 119,527.44 = 48,893.60 : x - Step 2: Convert to fraction form
86,615.84/119,527.44 = 48,893.60/x - Step 3: Cross multiply
86,615.84x = 119,527.44 × 48,893.60 - Step 4: Simplify right side
86,615.84x = 5,844,126,840.38 - Step 5: Solve for x
x = 5,844,126,840.38/86,615.84 - Step 6: Final answer
x = 67,471.80
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1.5x scale
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.