Finding the Fourth Proportional to 101,047.26, 139,442.70 and 55,723.80
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Solution
The fourth proportional to 101,047.26, 139,442.70 and 55,723.80 is: 76,897.45
Step by Step Solution
- Step 1: Write the proportion equation
101,047.26 : 139,442.70 = 55,723.80 : x - Step 2: Convert to fraction form
101,047.26/139,442.70 = 55,723.80/x - Step 3: Cross multiply
101,047.26x = 139,442.70 × 55,723.80 - Step 4: Simplify right side
101,047.26x = 7,770,277,126.26 - Step 5: Solve for x
x = 7,770,277,126.26/101,047.26 - Step 6: Final answer
x = 76,897.45
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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.