Finding the Fourth Proportional to 69,799.87, 104,660.02 and 47,640.07
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Solution
The fourth proportional to 69,799.87, 104,660.02 and 47,640.07 is: 71,432.95
Step by Step Solution
- Step 1: Write the proportion equation
69,799.87 : 104,660.02 = 47,640.07 : x - Step 2: Convert to fraction form
69,799.87/104,660.02 = 47,640.07/x - Step 3: Cross multiply
69,799.87x = 104,660.02 × 47,640.07 - Step 4: Simplify right side
69,799.87x = 4,986,010,679.00 - Step 5: Solve for x
x = 4,986,010,679.00/69,799.87 - Step 6: Final answer
x = 71,432.95
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1.5x scale
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.