Finding the Fourth Proportional to 86,370.06, 129,445.94 and 46,289.44
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Solution
The fourth proportional to 86,370.06, 129,445.94 and 46,289.44 is: 69,375.66
Step by Step Solution
- Step 1: Write the proportion equation
86,370.06 : 129,445.94 = 46,289.44 : x - Step 2: Convert to fraction form
86,370.06/129,445.94 = 46,289.44/x - Step 3: Cross multiply
86,370.06x = 129,445.94 × 46,289.44 - Step 4: Simplify right side
86,370.06x = 5,991,980,072.87 - Step 5: Solve for x
x = 5,991,980,072.87/86,370.06 - Step 6: Final answer
x = 69,375.66
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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.