Finding the Fourth Proportional to 68,887.41, 103,334.97 and 21,509.05
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Solution
The fourth proportional to 68,887.41, 103,334.97 and 21,509.05 is: 32,264.78
Step by Step Solution
- Step 1: Write the proportion equation
68,887.41 : 103,334.97 = 21,509.05 : x - Step 2: Convert to fraction form
68,887.41/103,334.97 = 21,509.05/x - Step 3: Cross multiply
68,887.41x = 103,334.97 × 21,509.05 - Step 4: Simplify right side
68,887.41x = 2,222,636,907.31 - Step 5: Solve for x
x = 2,222,636,907.31/68,887.41 - Step 6: Final answer
x = 32,264.78
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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.