Finding the Fourth Proportional to 76,902.76, 115,342.62 and 63,839.08
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Solution
The fourth proportional to 76,902.76, 115,342.62 and 63,839.08 is: 95,749.06
Step by Step Solution
- Step 1: Write the proportion equation
76,902.76 : 115,342.62 = 63,839.08 : x - Step 2: Convert to fraction form
76,902.76/115,342.62 = 63,839.08/x - Step 3: Cross multiply
76,902.76x = 115,342.62 × 63,839.08 - Step 4: Simplify right side
76,902.76x = 7,363,366,745.59 - Step 5: Solve for x
x = 7,363,366,745.59/76,902.76 - Step 6: Final answer
x = 95,749.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.