Finding the Fourth Proportional to 92,905.54, 128,209.77 and 50,464.08
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Solution
The fourth proportional to 92,905.54, 128,209.77 and 50,464.08 is: 69,640.50
Step by Step Solution
- Step 1: Write the proportion equation
92,905.54 : 128,209.77 = 50,464.08 : x - Step 2: Convert to fraction form
92,905.54/128,209.77 = 50,464.08/x - Step 3: Cross multiply
92,905.54x = 128,209.77 × 50,464.08 - Step 4: Simplify right side
92,905.54x = 6,469,988,090.06 - Step 5: Solve for x
x = 6,469,988,090.06/92,905.54 - Step 6: Final answer
x = 69,640.50
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1.5x scale
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.