Finding the Fourth Proportional to 76,865.70, 106,044.06 and 46,639.92
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Solution
The fourth proportional to 76,865.70, 106,044.06 and 46,639.92 is: 64,344.52
Step by Step Solution
- Step 1: Write the proportion equation
76,865.70 : 106,044.06 = 46,639.92 : x - Step 2: Convert to fraction form
76,865.70/106,044.06 = 46,639.92/x - Step 3: Cross multiply
76,865.70x = 106,044.06 × 46,639.92 - Step 4: Simplify right side
76,865.70x = 4,945,886,474.88 - Step 5: Solve for x
x = 4,945,886,474.88/76,865.70 - Step 6: Final answer
x = 64,344.52
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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.