Home / 84,785.32-127,173.66-25,620.76

Finding the Fourth Proportional to 84,785.32, 127,173.66 and 25,620.76

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Solution

The fourth proportional to 84,785.32, 127,173.66 and 25,620.76 is: 38,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,785.32 : 127,173.66 = 25,620.76 : x
  2. Step 2: Convert to fraction form
    84,785.32/127,173.66 = 25,620.76/x
  3. Step 3: Cross multiply
    84,785.32x = 127,173.66 × 25,620.76
  4. Step 4: Simplify right side
    84,785.32x = 3,258,285,821.18
  5. Step 5: Solve for x
    x = 3,258,285,821.18/84,785.32
  6. Step 6: Final answer
    x = 38,429.83

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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.