Finding the Fourth Proportional to 88,720.11, 133,107.21 and 53,220.87
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Solution
The fourth proportional to 88,720.11, 133,107.21 and 53,220.87 is: 79,847.53
Step by Step Solution
- Step 1: Write the proportion equation
88,720.11 : 133,107.21 = 53,220.87 : x - Step 2: Convert to fraction form
88,720.11/133,107.21 = 53,220.87/x - Step 3: Cross multiply
88,720.11x = 133,107.21 × 53,220.87 - Step 4: Simplify right side
88,720.11x = 7,084,081,519.47 - Step 5: Solve for x
x = 7,084,081,519.47/88,720.11 - Step 6: Final answer
x = 79,847.53
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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.