Finding the Fourth Proportional to 100,583.16, 138,804.84 and 55,264.07
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Solution
The fourth proportional to 100,583.16, 138,804.84 and 55,264.07 is: 76,264.46
Step by Step Solution
- Step 1: Write the proportion equation
100,583.16 : 138,804.84 = 55,264.07 : x - Step 2: Convert to fraction form
100,583.16/138,804.84 = 55,264.07/x - Step 3: Cross multiply
100,583.16x = 138,804.84 × 55,264.07 - Step 4: Simplify right side
100,583.16x = 7,670,920,394.10 - Step 5: Solve for x
x = 7,670,920,394.10/100,583.16 - Step 6: Final answer
x = 76,264.46
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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.