Finding the Fourth Proportional to 88,817.21, 133,320.63 and 38,241.28
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Solution
The fourth proportional to 88,817.21, 133,320.63 and 38,241.28 is: 57,402.75
Step by Step Solution
- Step 1: Write the proportion equation
88,817.21 : 133,320.63 = 38,241.28 : x - Step 2: Convert to fraction form
88,817.21/133,320.63 = 38,241.28/x - Step 3: Cross multiply
88,817.21x = 133,320.63 × 38,241.28 - Step 4: Simplify right side
88,817.21x = 5,098,351,851.66 - Step 5: Solve for x
x = 5,098,351,851.66/88,817.21 - Step 6: Final answer
x = 57,402.75
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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.