Finding the Fourth Proportional to 73,707.84, 110,546.64 and 21,107.52
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Solution
The fourth proportional to 73,707.84, 110,546.64 and 21,107.52 is: 31,656.95
Step by Step Solution
- Step 1: Write the proportion equation
73,707.84 : 110,546.64 = 21,107.52 : x - Step 2: Convert to fraction form
73,707.84/110,546.64 = 21,107.52/x - Step 3: Cross multiply
73,707.84x = 110,546.64 × 21,107.52 - Step 4: Simplify right side
73,707.84x = 2,333,365,414.73 - Step 5: Solve for x
x = 2,333,365,414.73/73,707.84 - Step 6: Final answer
x = 31,656.95
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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.