Finding the Fourth Proportional to 94,787.36, 130,806.24 and 57,063.68
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Solution
The fourth proportional to 94,787.36, 130,806.24 and 57,063.68 is: 78,747.69
Step by Step Solution
- Step 1: Write the proportion equation
94,787.36 : 130,806.24 = 57,063.68 : x - Step 2: Convert to fraction form
94,787.36/130,806.24 = 57,063.68/x - Step 3: Cross multiply
94,787.36x = 130,806.24 × 57,063.68 - Step 4: Simplify right side
94,787.36x = 7,464,285,421.36 - Step 5: Solve for x
x = 7,464,285,421.36/94,787.36 - Step 6: Final answer
x = 78,747.69
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1.5x scale
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.