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Finding the Fourth Proportional to 92,528.40, 138,760.20 and 48,140.40

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Solution

The fourth proportional to 92,528.40, 138,760.20 and 48,140.40 is: 72,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,528.40 : 138,760.20 = 48,140.40 : x
  2. Step 2: Convert to fraction form
    92,528.40/138,760.20 = 48,140.40/x
  3. Step 3: Cross multiply
    92,528.40x = 138,760.20 × 48,140.40
  4. Step 4: Simplify right side
    92,528.40x = 6,679,971,532.08
  5. Step 5: Solve for x
    x = 6,679,971,532.08/92,528.40
  6. Step 6: Final answer
    x = 72,193.74

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