Finding the Fourth Proportional to 87,977.64, 121,415.58 and 50,251.08
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Solution
The fourth proportional to 87,977.64, 121,415.58 and 50,251.08 is: 69,350.17
Step by Step Solution
- Step 1: Write the proportion equation
87,977.64 : 121,415.58 = 50,251.08 : x - Step 2: Convert to fraction form
87,977.64/121,415.58 = 50,251.08/x - Step 3: Cross multiply
87,977.64x = 121,415.58 × 50,251.08 - Step 4: Simplify right side
87,977.64x = 6,101,264,023.83 - Step 5: Solve for x
x = 6,101,264,023.83/87,977.64 - Step 6: Final answer
x = 69,350.17
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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.