Finding the Fourth Proportional to 69,936.21, 104,905.05 and 55,984.94
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Solution
The fourth proportional to 69,936.21, 104,905.05 and 55,984.94 is: 83,977.99
Step by Step Solution
- Step 1: Write the proportion equation
69,936.21 : 104,905.05 = 55,984.94 : x - Step 2: Convert to fraction form
69,936.21/104,905.05 = 55,984.94/x - Step 3: Cross multiply
69,936.21x = 104,905.05 × 55,984.94 - Step 4: Simplify right side
69,936.21x = 5,873,102,405.42 - Step 5: Solve for x
x = 5,873,102,405.42/69,936.21 - Step 6: Final answer
x = 83,977.99
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1.5x scale
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.