Finding the Fourth Proportional to 87,179.94, 120,319.44 and 51,373.26
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Solution
The fourth proportional to 87,179.94, 120,319.44 and 51,373.26 is: 70,901.65
Step by Step Solution
- Step 1: Write the proportion equation
87,179.94 : 120,319.44 = 51,373.26 : x - Step 2: Convert to fraction form
87,179.94/120,319.44 = 51,373.26/x - Step 3: Cross multiply
87,179.94x = 120,319.44 × 51,373.26 - Step 4: Simplify right side
87,179.94x = 6,181,201,874.17 - Step 5: Solve for x
x = 6,181,201,874.17/87,179.94 - Step 6: Final answer
x = 70,901.65
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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.