Finding the Fourth Proportional to 73,901.13, 110,852.60 and 21,311.07
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Solution
The fourth proportional to 73,901.13, 110,852.60 and 21,311.07 is: 31,966.86
Step by Step Solution
- Step 1: Write the proportion equation
73,901.13 : 110,852.60 = 21,311.07 : x - Step 2: Convert to fraction form
73,901.13/110,852.60 = 21,311.07/x - Step 3: Cross multiply
73,901.13x = 110,852.60 × 21,311.07 - Step 4: Simplify right side
73,901.13x = 2,362,387,411.73 - Step 5: Solve for x
x = 2,362,387,411.73/73,901.13 - Step 6: Final answer
x = 31,966.86
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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.