Finding the Fourth Proportional to 68,807.68, 103,198.56 and 26,687.68
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Solution
The fourth proportional to 68,807.68, 103,198.56 and 26,687.68 is: 40,026.49
Step by Step Solution
- Step 1: Write the proportion equation
68,807.68 : 103,198.56 = 26,687.68 : x - Step 2: Convert to fraction form
68,807.68/103,198.56 = 26,687.68/x - Step 3: Cross multiply
68,807.68x = 103,198.56 × 26,687.68 - Step 4: Simplify right side
68,807.68x = 2,754,130,145.74 - Step 5: Solve for x
x = 2,754,130,145.74/68,807.68 - Step 6: Final answer
x = 40,026.49
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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.