Home / 90,956.14-136,439.27-27,785.86

Finding the Fourth Proportional to 90,956.14, 136,439.27 and 27,785.86

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Solution

The fourth proportional to 90,956.14, 136,439.27 and 27,785.86 is: 41,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,956.14 : 136,439.27 = 27,785.86 : x
  2. Step 2: Convert to fraction form
    90,956.14/136,439.27 = 27,785.86/x
  3. Step 3: Cross multiply
    90,956.14x = 136,439.27 × 27,785.86
  4. Step 4: Simplify right side
    90,956.14x = 3,791,082,454.72
  5. Step 5: Solve for x
    x = 3,791,082,454.72/90,956.14
  6. Step 6: Final answer
    x = 41,680.34

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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.