Finding the Fourth Proportional to 75,729.67, 104,490.09 and 43,462.31
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Solution
The fourth proportional to 75,729.67, 104,490.09 and 43,462.31 is: 59,968.31
Step by Step Solution
- Step 1: Write the proportion equation
75,729.67 : 104,490.09 = 43,462.31 : x - Step 2: Convert to fraction form
75,729.67/104,490.09 = 43,462.31/x - Step 3: Cross multiply
75,729.67x = 104,490.09 × 43,462.31 - Step 4: Simplify right side
75,729.67x = 4,541,380,161.06 - Step 5: Solve for x
x = 4,541,380,161.06/75,729.67 - Step 6: Final answer
x = 59,968.31
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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.