Finding the Fourth Proportional to 69,230.36, 103,847.88 and 19,311.68
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Solution
The fourth proportional to 69,230.36, 103,847.88 and 19,311.68 is: 28,968.17
Step by Step Solution
- Step 1: Write the proportion equation
69,230.36 : 103,847.88 = 19,311.68 : x - Step 2: Convert to fraction form
69,230.36/103,847.88 = 19,311.68/x - Step 3: Cross multiply
69,230.36x = 103,847.88 × 19,311.68 - Step 4: Simplify right side
69,230.36x = 2,005,477,027.24 - Step 5: Solve for x
x = 2,005,477,027.24/69,230.36 - Step 6: Final answer
x = 28,968.17
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1.5x scale
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.