Finding the Fourth Proportional to 68,917.64, 103,310.84 and 22,137.71
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Solution
The fourth proportional to 68,917.64, 103,310.84 and 22,137.71 is: 33,185.48
Step by Step Solution
- Step 1: Write the proportion equation
68,917.64 : 103,310.84 = 22,137.71 : x - Step 2: Convert to fraction form
68,917.64/103,310.84 = 22,137.71/x - Step 3: Cross multiply
68,917.64x = 103,310.84 × 22,137.71 - Step 4: Simplify right side
68,917.64x = 2,287,064,788.53 - Step 5: Solve for x
x = 2,287,064,788.53/68,917.64 - Step 6: Final answer
x = 33,185.48
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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.