Finding the Fourth Proportional to 76,928.13, 106,159.28 and 43,394.13
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Solution
The fourth proportional to 76,928.13, 106,159.28 and 43,394.13 is: 59,883.03
Step by Step Solution
- Step 1: Write the proportion equation
76,928.13 : 106,159.28 = 43,394.13 : x - Step 2: Convert to fraction form
76,928.13/106,159.28 = 43,394.13/x - Step 3: Cross multiply
76,928.13x = 106,159.28 × 43,394.13 - Step 4: Simplify right side
76,928.13x = 4,606,689,380.06 - Step 5: Solve for x
x = 4,606,689,380.06/76,928.13 - Step 6: Final answer
x = 59,883.03
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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.