Finding the Fourth Proportional to 69,728.37, 104,477.58 and 40,171.05
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Solution
The fourth proportional to 69,728.37, 104,477.58 and 40,171.05 is: 60,190.34
Step by Step Solution
- Step 1: Write the proportion equation
69,728.37 : 104,477.58 = 40,171.05 : x - Step 2: Convert to fraction form
69,728.37/104,477.58 = 40,171.05/x - Step 3: Cross multiply
69,728.37x = 104,477.58 × 40,171.05 - Step 4: Simplify right side
69,728.37x = 4,196,974,090.06 - Step 5: Solve for x
x = 4,196,974,090.06/69,728.37 - Step 6: Final answer
x = 60,190.34
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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.