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Finding the Fourth Proportional to 83,858.96, 125,730.12 and 31,254.32

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Solution

The fourth proportional to 83,858.96, 125,730.12 and 31,254.32 is: 46,859.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,858.96 : 125,730.12 = 31,254.32 : x
  2. Step 2: Convert to fraction form
    83,858.96/125,730.12 = 31,254.32/x
  3. Step 3: Cross multiply
    83,858.96x = 125,730.12 × 31,254.32
  4. Step 4: Simplify right side
    83,858.96x = 3,929,609,404.12
  5. Step 5: Solve for x
    x = 3,929,609,404.12/83,858.96
  6. Step 6: Final answer
    x = 46,859.74

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