Finding the Fourth Proportional to 68,804.07, 103,220.91 and 21,418.14
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Solution
The fourth proportional to 68,804.07, 103,220.91 and 21,418.14 is: 32,131.82
Step by Step Solution
- Step 1: Write the proportion equation
68,804.07 : 103,220.91 = 21,418.14 : x - Step 2: Convert to fraction form
68,804.07/103,220.91 = 21,418.14/x - Step 3: Cross multiply
68,804.07x = 103,220.91 × 21,418.14 - Step 4: Simplify right side
68,804.07x = 2,210,799,901.31 - Step 5: Solve for x
x = 2,210,799,901.31/68,804.07 - Step 6: Final answer
x = 32,131.82
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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.