Home / 85,867.58-118,360.35-67,688.66

Finding the Fourth Proportional to 85,867.58, 118,360.35 and 67,688.66

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Solution

The fourth proportional to 85,867.58, 118,360.35 and 67,688.66 is: 93,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,867.58 : 118,360.35 = 67,688.66 : x
  2. Step 2: Convert to fraction form
    85,867.58/118,360.35 = 67,688.66/x
  3. Step 3: Cross multiply
    85,867.58x = 118,360.35 × 67,688.66
  4. Step 4: Simplify right side
    85,867.58x = 8,011,652,558.39
  5. Step 5: Solve for x
    x = 8,011,652,558.39/85,867.58
  6. Step 6: Final answer
    x = 93,302.41

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