Finding the Fourth Proportional to 68,883.31, 103,226.29 and 39,239.94
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Solution
The fourth proportional to 68,883.31, 103,226.29 and 39,239.94 is: 58,803.70
Step by Step Solution
- Step 1: Write the proportion equation
68,883.31 : 103,226.29 = 39,239.94 : x - Step 2: Convert to fraction form
68,883.31/103,226.29 = 39,239.94/x - Step 3: Cross multiply
68,883.31x = 103,226.29 × 39,239.94 - Step 4: Simplify right side
68,883.31x = 4,050,593,426.02 - Step 5: Solve for x
x = 4,050,593,426.02/68,883.31 - Step 6: Final answer
x = 58,803.70
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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.