Finding the Fourth Proportional to 92,843.55, 128,122.12 and 50,402.09
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Solution
The fourth proportional to 92,843.55, 128,122.12 and 50,402.09 is: 69,553.81
Step by Step Solution
- Step 1: Write the proportion equation
92,843.55 : 128,122.12 = 50,402.09 : x - Step 2: Convert to fraction form
92,843.55/128,122.12 = 50,402.09/x - Step 3: Cross multiply
92,843.55x = 128,122.12 × 50,402.09 - Step 4: Simplify right side
92,843.55x = 6,457,622,623.23 - Step 5: Solve for x
x = 6,457,622,623.23/92,843.55 - Step 6: Final answer
x = 69,553.81
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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.