Finding the Fourth Proportional to 71,928.57, 107,888.33 and 22,004.70
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Solution
The fourth proportional to 71,928.57, 107,888.33 and 22,004.70 is: 33,005.66
Step by Step Solution
- Step 1: Write the proportion equation
71,928.57 : 107,888.33 = 22,004.70 : x - Step 2: Convert to fraction form
71,928.57/107,888.33 = 22,004.70/x - Step 3: Cross multiply
71,928.57x = 107,888.33 × 22,004.70 - Step 4: Simplify right side
71,928.57x = 2,374,050,225.13 - Step 5: Solve for x
x = 2,374,050,225.13/71,928.57 - Step 6: Final answer
x = 33,005.66
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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.