Finding the Fourth Proportional to 81,294.91, 121,930.05 and 22,135.24
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Solution
The fourth proportional to 81,294.91, 121,930.05 and 22,135.24 is: 33,199.50
Step by Step Solution
- Step 1: Write the proportion equation
81,294.91 : 121,930.05 = 22,135.24 : x - Step 2: Convert to fraction form
81,294.91/121,930.05 = 22,135.24/x - Step 3: Cross multiply
81,294.91x = 121,930.05 × 22,135.24 - Step 4: Simplify right side
81,294.91x = 2,698,950,615.14 - Step 5: Solve for x
x = 2,698,950,615.14/81,294.91 - Step 6: Final answer
x = 33,199.50
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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.