Finding the Fourth Proportional to 77,126.92, 106,434.41 and 43,135.00
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Solution
The fourth proportional to 77,126.92, 106,434.41 and 43,135.00 is: 59,525.88
Step by Step Solution
- Step 1: Write the proportion equation
77,126.92 : 106,434.41 = 43,135.00 : x - Step 2: Convert to fraction form
77,126.92/106,434.41 = 43,135.00/x - Step 3: Cross multiply
77,126.92x = 106,434.41 × 43,135.00 - Step 4: Simplify right side
77,126.92x = 4,591,047,793.59 - Step 5: Solve for x
x = 4,591,047,793.59/77,126.92 - Step 6: Final answer
x = 59,525.88
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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.