Finding the Fourth Proportional to 75,021.97, 103,567.97 and 57,987.75
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Solution
The fourth proportional to 75,021.97, 103,567.97 and 57,987.75 is: 80,052.19
Step by Step Solution
- Step 1: Write the proportion equation
75,021.97 : 103,567.97 = 57,987.75 : x - Step 2: Convert to fraction form
75,021.97/103,567.97 = 57,987.75/x - Step 3: Cross multiply
75,021.97x = 103,567.97 × 57,987.75 - Step 4: Simplify right side
75,021.97x = 6,005,673,176.97 - Step 5: Solve for x
x = 6,005,673,176.97/75,021.97 - Step 6: Final answer
x = 80,052.19
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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.