Finding the Fourth Proportional to 89,017.99, 122,846.29 and 48,731.09
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Solution
The fourth proportional to 89,017.99, 122,846.29 and 48,731.09 is: 67,249.70
Step by Step Solution
- Step 1: Write the proportion equation
89,017.99 : 122,846.29 = 48,731.09 : x - Step 2: Convert to fraction form
89,017.99/122,846.29 = 48,731.09/x - Step 3: Cross multiply
89,017.99x = 122,846.29 × 48,731.09 - Step 4: Simplify right side
89,017.99x = 5,986,432,878.10 - Step 5: Solve for x
x = 5,986,432,878.10/89,017.99 - Step 6: Final answer
x = 67,249.70
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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.