Finding the Fourth Proportional to 94,009.12, 129,738.56 and 62,122.08
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Solution
The fourth proportional to 94,009.12, 129,738.56 and 62,122.08 is: 85,732.42
Step by Step Solution
- Step 1: Write the proportion equation
94,009.12 : 129,738.56 = 62,122.08 : x - Step 2: Convert to fraction form
94,009.12/129,738.56 = 62,122.08/x - Step 3: Cross multiply
94,009.12x = 129,738.56 × 62,122.08 - Step 4: Simplify right side
94,009.12x = 8,059,629,203.40 - Step 5: Solve for x
x = 8,059,629,203.40/94,009.12 - Step 6: Final answer
x = 85,732.42
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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.