Finding the Fourth Proportional to 86,787.36, 130,182.12 and 27,622.80
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Solution
The fourth proportional to 86,787.36, 130,182.12 and 27,622.80 is: 41,434.54
Step by Step Solution
- Step 1: Write the proportion equation
86,787.36 : 130,182.12 = 27,622.80 : x - Step 2: Convert to fraction form
86,787.36/130,182.12 = 27,622.80/x - Step 3: Cross multiply
86,787.36x = 130,182.12 × 27,622.80 - Step 4: Simplify right side
86,787.36x = 3,595,994,664.34 - Step 5: Solve for x
x = 3,595,994,664.34/86,787.36 - Step 6: Final answer
x = 41,434.54
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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.