Finding the Fourth Proportional to 77,325.68, 106,709.64 and 43,791.68
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Solution
The fourth proportional to 77,325.68, 106,709.64 and 43,791.68 is: 60,432.63
Step by Step Solution
- Step 1: Write the proportion equation
77,325.68 : 106,709.64 = 43,791.68 : x - Step 2: Convert to fraction form
77,325.68/106,709.64 = 43,791.68/x - Step 3: Cross multiply
77,325.68x = 106,709.64 × 43,791.68 - Step 4: Simplify right side
77,325.68x = 4,672,994,407.80 - Step 5: Solve for x
x = 4,672,994,407.80/77,325.68 - Step 6: Final answer
x = 60,432.63
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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.