Finding the Fourth Proportional to 69,230.97, 103,863.99 and 19,311.06
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Solution
The fourth proportional to 69,230.97, 103,863.99 and 19,311.06 is: 28,971.48
Step by Step Solution
- Step 1: Write the proportion equation
69,230.97 : 103,863.99 = 19,311.06 : x - Step 2: Convert to fraction form
69,230.97/103,863.99 = 19,311.06/x - Step 3: Cross multiply
69,230.97x = 103,863.99 × 19,311.06 - Step 4: Simplify right side
69,230.97x = 2,005,723,742.73 - Step 5: Solve for x
x = 2,005,723,742.73/69,230.97 - Step 6: Final answer
x = 28,971.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.