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Finding the Fourth Proportional to 85,154.76, 127,732.14 and 25,990.74

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Solution

The fourth proportional to 85,154.76, 127,732.14 and 25,990.74 is: 38,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,154.76 : 127,732.14 = 25,990.74 : x
  2. Step 2: Convert to fraction form
    85,154.76/127,732.14 = 25,990.74/x
  3. Step 3: Cross multiply
    85,154.76x = 127,732.14 × 25,990.74
  4. Step 4: Simplify right side
    85,154.76x = 3,319,852,840.38
  5. Step 5: Solve for x
    x = 3,319,852,840.38/85,154.76
  6. Step 6: Final answer
    x = 38,986.11

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