Home / 56,281.56-77,667.60-31,131.06

Finding the Fourth Proportional to 56,281.56, 77,667.60 and 31,131.06

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Solution

The fourth proportional to 56,281.56, 77,667.60 and 31,131.06 is: 42,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,281.56 : 77,667.60 = 31,131.06 : x
  2. Step 2: Convert to fraction form
    56,281.56/77,667.60 = 31,131.06/x
  3. Step 3: Cross multiply
    56,281.56x = 77,667.60 × 31,131.06
  4. Step 4: Simplify right side
    56,281.56x = 2,417,874,715.66
  5. Step 5: Solve for x
    x = 2,417,874,715.66/56,281.56
  6. Step 6: Final answer
    x = 42,960.34

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