Home / 90,437.87-135,638.33-34,258.61

Finding the Fourth Proportional to 90,437.87, 135,638.33 and 34,258.61

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Solution

The fourth proportional to 90,437.87, 135,638.33 and 34,258.61 is: 51,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,437.87 : 135,638.33 = 34,258.61 : x
  2. Step 2: Convert to fraction form
    90,437.87/135,638.33 = 34,258.61/x
  3. Step 3: Cross multiply
    90,437.87x = 135,638.33 × 34,258.61
  4. Step 4: Simplify right side
    90,437.87x = 4,646,779,799.04
  5. Step 5: Solve for x
    x = 4,646,779,799.04/90,437.87
  6. Step 6: Final answer
    x = 51,380.91

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