Home / 81,443.32-122,159.19-25,282.09

Finding the Fourth Proportional to 81,443.32, 122,159.19 and 25,282.09

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Solution

The fourth proportional to 81,443.32, 122,159.19 and 25,282.09 is: 37,921.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,443.32 : 122,159.19 = 25,282.09 : x
  2. Step 2: Convert to fraction form
    81,443.32/122,159.19 = 25,282.09/x
  3. Step 3: Cross multiply
    81,443.32x = 122,159.19 × 25,282.09
  4. Step 4: Simplify right side
    81,443.32x = 3,088,439,635.91
  5. Step 5: Solve for x
    x = 3,088,439,635.91/81,443.32
  6. Step 6: Final answer
    x = 37,921.34

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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.