Finding the Fourth Proportional to 88,961.76, 122,746.56 and 53,163.36
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Solution
The fourth proportional to 88,961.76, 122,746.56 and 53,163.36 is: 73,353.09
Step by Step Solution
- Step 1: Write the proportion equation
88,961.76 : 122,746.56 = 53,163.36 : x - Step 2: Convert to fraction form
88,961.76/122,746.56 = 53,163.36/x - Step 3: Cross multiply
88,961.76x = 122,746.56 × 53,163.36 - Step 4: Simplify right side
88,961.76x = 6,525,619,558.04 - Step 5: Solve for x
x = 6,525,619,558.04/88,961.76 - Step 6: Final answer
x = 73,353.09
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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.