Finding the Fourth Proportional to 76,992.12, 115,526.52 and 43,237.20
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Solution
The fourth proportional to 76,992.12, 115,526.52 and 43,237.20 is: 64,877.33
Step by Step Solution
- Step 1: Write the proportion equation
76,992.12 : 115,526.52 = 43,237.20 : x - Step 2: Convert to fraction form
76,992.12/115,526.52 = 43,237.20/x - Step 3: Cross multiply
76,992.12x = 115,526.52 × 43,237.20 - Step 4: Simplify right side
76,992.12x = 4,995,043,250.54 - Step 5: Solve for x
x = 4,995,043,250.54/76,992.12 - Step 6: Final answer
x = 64,877.33
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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.