Finding the Fourth Proportional to 76,905.74, 115,357.87 and 24,315.23
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Solution
The fourth proportional to 76,905.74, 115,357.87 and 24,315.23 is: 36,472.61
Step by Step Solution
- Step 1: Write the proportion equation
76,905.74 : 115,357.87 = 24,315.23 : x - Step 2: Convert to fraction form
76,905.74/115,357.87 = 24,315.23/x - Step 3: Cross multiply
76,905.74x = 115,357.87 × 24,315.23 - Step 4: Simplify right side
76,905.74x = 2,804,953,141.36 - Step 5: Solve for x
x = 2,804,953,141.36/76,905.74 - Step 6: Final answer
x = 36,472.61
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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.