Home / 85,688.16-118,227.24-49,380.72

Finding the Fourth Proportional to 85,688.16, 118,227.24 and 49,380.72

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Solution

The fourth proportional to 85,688.16, 118,227.24 and 49,380.72 is: 68,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,688.16 : 118,227.24 = 49,380.72 : x
  2. Step 2: Convert to fraction form
    85,688.16/118,227.24 = 49,380.72/x
  3. Step 3: Cross multiply
    85,688.16x = 118,227.24 × 49,380.72
  4. Step 4: Simplify right side
    85,688.16x = 5,838,146,234.81
  5. Step 5: Solve for x
    x = 5,838,146,234.81/85,688.16
  6. Step 6: Final answer
    x = 68,132.47

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