Finding the Fourth Proportional to 81,193.69, 121,779.42 and 24,266.80
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Solution
The fourth proportional to 81,193.69, 121,779.42 and 24,266.80 is: 36,396.88
Step by Step Solution
- Step 1: Write the proportion equation
81,193.69 : 121,779.42 = 24,266.80 : x - Step 2: Convert to fraction form
81,193.69/121,779.42 = 24,266.80/x - Step 3: Cross multiply
81,193.69x = 121,779.42 × 24,266.80 - Step 4: Simplify right side
81,193.69x = 2,955,196,829.26 - Step 5: Solve for x
x = 2,955,196,829.26/81,193.69 - Step 6: Final answer
x = 36,396.88
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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.