Finding the Fourth Proportional to 81,909.60, 122,864.44 and 22,745.26
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Solution
The fourth proportional to 81,909.60, 122,864.44 and 22,745.26 is: 34,117.90
Step by Step Solution
- Step 1: Write the proportion equation
81,909.60 : 122,864.44 = 22,745.26 : x - Step 2: Convert to fraction form
81,909.60/122,864.44 = 22,745.26/x - Step 3: Cross multiply
81,909.60x = 122,864.44 × 22,745.26 - Step 4: Simplify right side
81,909.60x = 2,794,583,632.55 - Step 5: Solve for x
x = 2,794,583,632.55/81,909.60 - Step 6: Final answer
x = 34,117.90
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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.