Finding the Fourth Proportional to 86,363.41, 119,178.36 and 48,120.98
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Solution
The fourth proportional to 86,363.41, 119,178.36 and 48,120.98 is: 66,405.20
Step by Step Solution
- Step 1: Write the proportion equation
86,363.41 : 119,178.36 = 48,120.98 : x - Step 2: Convert to fraction form
86,363.41/119,178.36 = 48,120.98/x - Step 3: Cross multiply
86,363.41x = 119,178.36 × 48,120.98 - Step 4: Simplify right side
86,363.41x = 5,734,979,896.24 - Step 5: Solve for x
x = 5,734,979,896.24/86,363.41 - Step 6: Final answer
x = 66,405.20
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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.