Finding the Fourth Proportional to 86,892.84, 130,221.36 and 36,910.26
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Solution
The fourth proportional to 86,892.84, 130,221.36 and 36,910.26 is: 55,315.31
Step by Step Solution
- Step 1: Write the proportion equation
86,892.84 : 130,221.36 = 36,910.26 : x - Step 2: Convert to fraction form
86,892.84/130,221.36 = 36,910.26/x - Step 3: Cross multiply
86,892.84x = 130,221.36 × 36,910.26 - Step 4: Simplify right side
86,892.84x = 4,806,504,255.15 - Step 5: Solve for x
x = 4,806,504,255.15/86,892.84 - Step 6: Final answer
x = 55,315.31
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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.