Finding the Fourth Proportional to 91,126.53, 125,754.71 and 53,400.75
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Solution
The fourth proportional to 91,126.53, 125,754.71 and 53,400.75 is: 73,693.09
Step by Step Solution
- Step 1: Write the proportion equation
91,126.53 : 125,754.71 = 53,400.75 : x - Step 2: Convert to fraction form
91,126.53/125,754.71 = 53,400.75/x - Step 3: Cross multiply
91,126.53x = 125,754.71 × 53,400.75 - Step 4: Simplify right side
91,126.53x = 6,715,395,563.03 - Step 5: Solve for x
x = 6,715,395,563.03/91,126.53 - Step 6: Final answer
x = 73,693.09
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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.