Finding the Fourth Proportional to 81,483.80, 122,225.81 and 22,319.99
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Solution
The fourth proportional to 81,483.80, 122,225.81 and 22,319.99 is: 33,480.01
Step by Step Solution
- Step 1: Write the proportion equation
81,483.80 : 122,225.81 = 22,319.99 : x - Step 2: Convert to fraction form
81,483.80/122,225.81 = 22,319.99/x - Step 3: Cross multiply
81,483.80x = 122,225.81 × 22,319.99 - Step 4: Simplify right side
81,483.80x = 2,728,078,134.21 - Step 5: Solve for x
x = 2,728,078,134.21/81,483.80 - Step 6: Final answer
x = 33,480.01
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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.