Finding the Fourth Proportional to 115,867.05, 173,769.18 and 40,977.28
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Solution
The fourth proportional to 115,867.05, 173,769.18 and 40,977.28 is: 61,454.82
Step by Step Solution
- Step 1: Write the proportion equation
115,867.05 : 173,769.18 = 40,977.28 : x - Step 2: Convert to fraction form
115,867.05/173,769.18 = 40,977.28/x - Step 3: Cross multiply
115,867.05x = 173,769.18 × 40,977.28 - Step 4: Simplify right side
115,867.05x = 7,120,588,344.23 - Step 5: Solve for x
x = 7,120,588,344.23/115,867.05 - Step 6: Final answer
x = 61,454.82
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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.