Finding the Fourth Proportional to 68,860.71, 103,279.18 and 18,260.09
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Solution
The fourth proportional to 68,860.71, 103,279.18 and 18,260.09 is: 27,386.98
Step by Step Solution
- Step 1: Write the proportion equation
68,860.71 : 103,279.18 = 18,260.09 : x - Step 2: Convert to fraction form
68,860.71/103,279.18 = 18,260.09/x - Step 3: Cross multiply
68,860.71x = 103,279.18 × 18,260.09 - Step 4: Simplify right side
68,860.71x = 1,885,887,121.93 - Step 5: Solve for x
x = 1,885,887,121.93/68,860.71 - Step 6: Final answer
x = 27,386.98
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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.