Finding the Fourth Proportional to 84,988.17, 117,278.69 and 49,175.64
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Solution
The fourth proportional to 84,988.17, 117,278.69 and 49,175.64 is: 67,859.50
Step by Step Solution
- Step 1: Write the proportion equation
84,988.17 : 117,278.69 = 49,175.64 : x - Step 2: Convert to fraction form
84,988.17/117,278.69 = 49,175.64/x - Step 3: Cross multiply
84,988.17x = 117,278.69 × 49,175.64 - Step 4: Simplify right side
84,988.17x = 5,767,254,393.23 - Step 5: Solve for x
x = 5,767,254,393.23/84,988.17 - Step 6: Final answer
x = 67,859.50
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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.