Finding the Fourth Proportional to 104,798.21, 144,621.86 and 57,051.84
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Solution
The fourth proportional to 104,798.21, 144,621.86 and 57,051.84 is: 78,731.73
Step by Step Solution
- Step 1: Write the proportion equation
104,798.21 : 144,621.86 = 57,051.84 : x - Step 2: Convert to fraction form
104,798.21/144,621.86 = 57,051.84/x - Step 3: Cross multiply
104,798.21x = 144,621.86 × 57,051.84 - Step 4: Simplify right side
104,798.21x = 8,250,943,474.30 - Step 5: Solve for x
x = 8,250,943,474.30/104,798.21 - Step 6: Final answer
x = 78,731.73
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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.