Finding the Fourth Proportional to 75,230.80, 103,791.04 and 45,016.99
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Solution
The fourth proportional to 75,230.80, 103,791.04 and 45,016.99 is: 62,107.01
Step by Step Solution
- Step 1: Write the proportion equation
75,230.80 : 103,791.04 = 45,016.99 : x - Step 2: Convert to fraction form
75,230.80/103,791.04 = 45,016.99/x - Step 3: Cross multiply
75,230.80x = 103,791.04 × 45,016.99 - Step 4: Simplify right side
75,230.80x = 4,672,360,209.77 - Step 5: Solve for x
x = 4,672,360,209.77/75,230.80 - Step 6: Final answer
x = 62,107.01
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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.