Home / 78,909.46-118,370.30-26,318.86

Finding the Fourth Proportional to 78,909.46, 118,370.30 and 26,318.86

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Solution

The fourth proportional to 78,909.46, 118,370.30 and 26,318.86 is: 39,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.46 : 118,370.30 = 26,318.86 : x
  2. Step 2: Convert to fraction form
    78,909.46/118,370.30 = 26,318.86/x
  3. Step 3: Cross multiply
    78,909.46x = 118,370.30 × 26,318.86
  4. Step 4: Simplify right side
    78,909.46x = 3,115,370,926.34
  5. Step 5: Solve for x
    x = 3,115,370,926.34/78,909.46
  6. Step 6: Final answer
    x = 39,480.32

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