Finding the Fourth Proportional to 66,810.87, 100,212.80 and 22,438.53
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Solution
The fourth proportional to 66,810.87, 100,212.80 and 22,438.53 is: 33,656.62
Step by Step Solution
- Step 1: Write the proportion equation
66,810.87 : 100,212.80 = 22,438.53 : x - Step 2: Convert to fraction form
66,810.87/100,212.80 = 22,438.53/x - Step 3: Cross multiply
66,810.87x = 100,212.80 × 22,438.53 - Step 4: Simplify right side
66,810.87x = 2,248,627,806.99 - Step 5: Solve for x
x = 2,248,627,806.99/66,810.87 - Step 6: Final answer
x = 33,656.62
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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.