Finding the Fourth Proportional to 83,930.06, 125,913.64 and 27,787.70
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Solution
The fourth proportional to 83,930.06, 125,913.64 and 27,787.70 is: 41,687.69
Step by Step Solution
- Step 1: Write the proportion equation
83,930.06 : 125,913.64 = 27,787.70 : x - Step 2: Convert to fraction form
83,930.06/125,913.64 = 27,787.70/x - Step 3: Cross multiply
83,930.06x = 125,913.64 × 27,787.70 - Step 4: Simplify right side
83,930.06x = 3,498,850,454.23 - Step 5: Solve for x
x = 3,498,850,454.23/83,930.06 - Step 6: Final answer
x = 41,687.69
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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.