Finding the Fourth Proportional to 86,288.18, 129,450.74 and 48,865.94
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Solution
The fourth proportional to 86,288.18, 129,450.74 and 48,865.94 is: 73,309.37
Step by Step Solution
- Step 1: Write the proportion equation
86,288.18 : 129,450.74 = 48,865.94 : x - Step 2: Convert to fraction form
86,288.18/129,450.74 = 48,865.94/x - Step 3: Cross multiply
86,288.18x = 129,450.74 × 48,865.94 - Step 4: Simplify right side
86,288.18x = 6,325,731,568.71 - Step 5: Solve for x
x = 6,325,731,568.71/86,288.18 - Step 6: Final answer
x = 73,309.37
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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.