Finding the Fourth Proportional to 76,937.10, 115,438.05 and 41,901.90
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Solution
The fourth proportional to 76,937.10, 115,438.05 and 41,901.90 is: 62,870.50
Step by Step Solution
- Step 1: Write the proportion equation
76,937.10 : 115,438.05 = 41,901.90 : x - Step 2: Convert to fraction form
76,937.10/115,438.05 = 41,901.90/x - Step 3: Cross multiply
76,937.10x = 115,438.05 × 41,901.90 - Step 4: Simplify right side
76,937.10x = 4,837,073,627.30 - Step 5: Solve for x
x = 4,837,073,627.30/76,937.10 - Step 6: Final answer
x = 62,870.50
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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.