Home / 81,182.34-121,785.12-25,027.20

Finding the Fourth Proportional to 81,182.34, 121,785.12 and 25,027.20

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Solution

The fourth proportional to 81,182.34, 121,785.12 and 25,027.20 is: 37,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,182.34 : 121,785.12 = 25,027.20 : x
  2. Step 2: Convert to fraction form
    81,182.34/121,785.12 = 25,027.20/x
  3. Step 3: Cross multiply
    81,182.34x = 121,785.12 × 25,027.20
  4. Step 4: Simplify right side
    81,182.34x = 3,047,940,555.26
  5. Step 5: Solve for x
    x = 3,047,940,555.26/81,182.34
  6. Step 6: Final answer
    x = 37,544.38

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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.