Finding the Fourth Proportional to 86,163.81, 118,908.10 and 47,924.92
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Solution
The fourth proportional to 86,163.81, 118,908.10 and 47,924.92 is: 66,137.52
Step by Step Solution
- Step 1: Write the proportion equation
86,163.81 : 118,908.10 = 47,924.92 : x - Step 2: Convert to fraction form
86,163.81/118,908.10 = 47,924.92/x - Step 3: Cross multiply
86,163.81x = 118,908.10 × 47,924.92 - Step 4: Simplify right side
86,163.81x = 5,698,660,719.54 - Step 5: Solve for x
x = 5,698,660,719.54/86,163.81 - Step 6: Final answer
x = 66,137.52
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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.