Finding the Fourth Proportional to 72,053.07, 108,074.34 and 22,128.99
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Solution
The fourth proportional to 72,053.07, 108,074.34 and 22,128.99 is: 33,191.87
Step by Step Solution
- Step 1: Write the proportion equation
72,053.07 : 108,074.34 = 22,128.99 : x - Step 2: Convert to fraction form
72,053.07/108,074.34 = 22,128.99/x - Step 3: Cross multiply
72,053.07x = 108,074.34 × 22,128.99 - Step 4: Simplify right side
72,053.07x = 2,391,575,989.12 - Step 5: Solve for x
x = 2,391,575,989.12/72,053.07 - Step 6: Final answer
x = 33,191.87
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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.