Finding the Fourth Proportional to 69,408.64, 104,112.96 and 16,817.92
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Solution
The fourth proportional to 69,408.64, 104,112.96 and 16,817.92 is: 25,226.88
Step by Step Solution
- Step 1: Write the proportion equation
69,408.64 : 104,112.96 = 16,817.92 : x - Step 2: Convert to fraction form
69,408.64/104,112.96 = 16,817.92/x - Step 3: Cross multiply
69,408.64x = 104,112.96 × 16,817.92 - Step 4: Simplify right side
69,408.64x = 1,750,963,432.24 - Step 5: Solve for x
x = 1,750,963,432.24/69,408.64 - Step 6: Final answer
x = 25,226.88
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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.