Finding the Fourth Proportional to 76,779.76, 115,173.76 and 24,193.36
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Solution
The fourth proportional to 76,779.76, 115,173.76 and 24,193.36 is: 36,291.34
Step by Step Solution
- Step 1: Write the proportion equation
76,779.76 : 115,173.76 = 24,193.36 : x - Step 2: Convert to fraction form
76,779.76/115,173.76 = 24,193.36/x - Step 3: Cross multiply
76,779.76x = 115,173.76 × 24,193.36 - Step 4: Simplify right side
76,779.76x = 2,786,440,238.23 - Step 5: Solve for x
x = 2,786,440,238.23/76,779.76 - Step 6: Final answer
x = 36,291.34
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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.