Finding the Fourth Proportional to 83,578.96, 125,362.56 and 39,215.44
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Solution
The fourth proportional to 83,578.96, 125,362.56 and 39,215.44 is: 58,820.40
Step by Step Solution
- Step 1: Write the proportion equation
83,578.96 : 125,362.56 = 39,215.44 : x - Step 2: Convert to fraction form
83,578.96/125,362.56 = 39,215.44/x - Step 3: Cross multiply
83,578.96x = 125,362.56 × 39,215.44 - Step 4: Simplify right side
83,578.96x = 4,916,147,949.93 - Step 5: Solve for x
x = 4,916,147,949.93/83,578.96 - Step 6: Final answer
x = 58,820.40
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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.