Finding the Fourth Proportional to 68,402.40, 102,593.36 and 21,649.28
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Solution
The fourth proportional to 68,402.40, 102,593.36 and 21,649.28 is: 32,470.68
Step by Step Solution
- Step 1: Write the proportion equation
68,402.40 : 102,593.36 = 21,649.28 : x - Step 2: Convert to fraction form
68,402.40/102,593.36 = 21,649.28/x - Step 3: Cross multiply
68,402.40x = 102,593.36 × 21,649.28 - Step 4: Simplify right side
68,402.40x = 2,221,072,376.78 - Step 5: Solve for x
x = 2,221,072,376.78/68,402.40 - Step 6: Final answer
x = 32,470.68
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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.