Finding the Fourth Proportional to 81,724.80, 122,584.76 and 22,564.08
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Solution
The fourth proportional to 81,724.80, 122,584.76 and 22,564.08 is: 33,845.45
Step by Step Solution
- Step 1: Write the proportion equation
81,724.80 : 122,584.76 = 22,564.08 : x - Step 2: Convert to fraction form
81,724.80/122,584.76 = 22,564.08/x - Step 3: Cross multiply
81,724.80x = 122,584.76 × 22,564.08 - Step 4: Simplify right side
81,724.80x = 2,766,012,331.42 - Step 5: Solve for x
x = 2,766,012,331.42/81,724.80 - Step 6: Final answer
x = 33,845.45
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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.