Finding the Fourth Proportional to 69,034.85, 103,540.73 and 19,119.99
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Solution
The fourth proportional to 69,034.85, 103,540.73 and 19,119.99 is: 28,676.79
Step by Step Solution
- Step 1: Write the proportion equation
69,034.85 : 103,540.73 = 19,119.99 : x - Step 2: Convert to fraction form
69,034.85/103,540.73 = 19,119.99/x - Step 3: Cross multiply
69,034.85x = 103,540.73 × 19,119.99 - Step 4: Simplify right side
69,034.85x = 1,979,697,626.59 - Step 5: Solve for x
x = 1,979,697,626.59/69,034.85 - Step 6: Final answer
x = 28,676.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.