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Finding the Fourth Proportional to 80,111.64, 120,184.70 and 23,956.20

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Solution

The fourth proportional to 80,111.64, 120,184.70 and 23,956.20 is: 35,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.64 : 120,184.70 = 23,956.20 : x
  2. Step 2: Convert to fraction form
    80,111.64/120,184.70 = 23,956.20/x
  3. Step 3: Cross multiply
    80,111.64x = 120,184.70 × 23,956.20
  4. Step 4: Simplify right side
    80,111.64x = 2,879,168,710.14
  5. Step 5: Solve for x
    x = 2,879,168,710.14/80,111.64
  6. Step 6: Final answer
    x = 35,939.46

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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.