Finding the Fourth Proportional to 89,017.11, 122,788.31 and 55,035.99
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Solution
The fourth proportional to 89,017.11, 122,788.31 and 55,035.99 is: 75,915.47
Step by Step Solution
- Step 1: Write the proportion equation
89,017.11 : 122,788.31 = 55,035.99 : x - Step 2: Convert to fraction form
89,017.11/122,788.31 = 55,035.99/x - Step 3: Cross multiply
89,017.11x = 122,788.31 × 55,035.99 - Step 4: Simplify right side
89,017.11x = 6,757,775,926.10 - Step 5: Solve for x
x = 6,757,775,926.10/89,017.11 - Step 6: Final answer
x = 75,915.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.