Finding the Fourth Proportional to 75,445.32, 104,119.62 and 43,622.28
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Solution
The fourth proportional to 75,445.32, 104,119.62 and 43,622.28 is: 60,201.68
Step by Step Solution
- Step 1: Write the proportion equation
75,445.32 : 104,119.62 = 43,622.28 : x - Step 2: Convert to fraction form
75,445.32/104,119.62 = 43,622.28/x - Step 3: Cross multiply
75,445.32x = 104,119.62 × 43,622.28 - Step 4: Simplify right side
75,445.32x = 4,541,935,217.13 - Step 5: Solve for x
x = 4,541,935,217.13/75,445.32 - Step 6: Final answer
x = 60,201.68
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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.