Finding the Fourth Proportional to 98,480.76, 135,902.72 and 53,768.76
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Solution
The fourth proportional to 98,480.76, 135,902.72 and 53,768.76 is: 74,200.49
Step by Step Solution
- Step 1: Write the proportion equation
98,480.76 : 135,902.72 = 53,768.76 : x - Step 2: Convert to fraction form
98,480.76/135,902.72 = 53,768.76/x - Step 3: Cross multiply
98,480.76x = 135,902.72 × 53,768.76 - Step 4: Simplify right side
98,480.76x = 7,307,320,735.03 - Step 5: Solve for x
x = 7,307,320,735.03/98,480.76 - Step 6: Final answer
x = 74,200.49
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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.