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Finding the Fourth Proportional to 80,145.63, 120,234.84 and 27,548.28

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Solution

The fourth proportional to 80,145.63, 120,234.84 and 27,548.28 is: 41,328.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,145.63 : 120,234.84 = 27,548.28 : x
  2. Step 2: Convert to fraction form
    80,145.63/120,234.84 = 27,548.28/x
  3. Step 3: Cross multiply
    80,145.63x = 120,234.84 × 27,548.28
  4. Step 4: Simplify right side
    80,145.63x = 3,312,263,038.08
  5. Step 5: Solve for x
    x = 3,312,263,038.08/80,145.63
  6. Step 6: Final answer
    x = 41,328.06

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1.5x scale

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.