Finding the Fourth Proportional to 86,509.05, 129,762.78 and 27,344.76
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Solution
The fourth proportional to 86,509.05, 129,762.78 and 27,344.76 is: 41,016.89
Step by Step Solution
- Step 1: Write the proportion equation
86,509.05 : 129,762.78 = 27,344.76 : x - Step 2: Convert to fraction form
86,509.05/129,762.78 = 27,344.76/x - Step 3: Cross multiply
86,509.05x = 129,762.78 × 27,344.76 - Step 4: Simplify right side
86,509.05x = 3,548,332,076.03 - Step 5: Solve for x
x = 3,548,332,076.03/86,509.05 - Step 6: Final answer
x = 41,016.89
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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.