Finding the Fourth Proportional to 76,905.28, 115,357.24 and 24,314.80
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Solution
The fourth proportional to 76,905.28, 115,357.24 and 24,314.80 is: 36,471.99
Step by Step Solution
- Step 1: Write the proportion equation
76,905.28 : 115,357.24 = 24,314.80 : x - Step 2: Convert to fraction form
76,905.28/115,357.24 = 24,314.80/x - Step 3: Cross multiply
76,905.28x = 115,357.24 × 24,314.80 - Step 4: Simplify right side
76,905.28x = 2,804,888,219.15 - Step 5: Solve for x
x = 2,804,888,219.15/76,905.28 - Step 6: Final answer
x = 36,471.99
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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.