Finding the Fourth Proportional to 76,912.74, 115,420.59 and 26,993.07
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Solution
The fourth proportional to 76,912.74, 115,420.59 and 26,993.07 is: 40,507.67
Step by Step Solution
- Step 1: Write the proportion equation
76,912.74 : 115,420.59 = 26,993.07 : x - Step 2: Convert to fraction form
76,912.74/115,420.59 = 26,993.07/x - Step 3: Cross multiply
76,912.74x = 115,420.59 × 26,993.07 - Step 4: Simplify right side
76,912.74x = 3,115,556,065.31 - Step 5: Solve for x
x = 3,115,556,065.31/76,912.74 - Step 6: Final answer
x = 40,507.67
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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.