Finding the Fourth Proportional to 66,203.10, 91,351.26 and 39,335.82
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Solution
The fourth proportional to 66,203.10, 91,351.26 and 39,335.82 is: 54,278.07
Step by Step Solution
- Step 1: Write the proportion equation
66,203.10 : 91,351.26 = 39,335.82 : x - Step 2: Convert to fraction form
66,203.10/91,351.26 = 39,335.82/x - Step 3: Cross multiply
66,203.10x = 91,351.26 × 39,335.82 - Step 4: Simplify right side
66,203.10x = 3,593,376,720.13 - Step 5: Solve for x
x = 3,593,376,720.13/66,203.10 - Step 6: Final answer
x = 54,278.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.