Finding the Fourth Proportional to 87,137.71, 130,677.37 and 27,959.31
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Solution
The fourth proportional to 87,137.71, 130,677.37 and 27,959.31 is: 41,929.60
Step by Step Solution
- Step 1: Write the proportion equation
87,137.71 : 130,677.37 = 27,959.31 : x - Step 2: Convert to fraction form
87,137.71/130,677.37 = 27,959.31/x - Step 3: Cross multiply
87,137.71x = 130,677.37 × 27,959.31 - Step 4: Simplify right side
87,137.71x = 3,653,649,027.92 - Step 5: Solve for x
x = 3,653,649,027.92/87,137.71 - Step 6: Final answer
x = 41,929.60
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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.