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Finding the Fourth Proportional to 74,438.80, 111,463.80 and 48,000.40

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Solution

The fourth proportional to 74,438.80, 111,463.80 and 48,000.40 is: 71,875.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,438.80 : 111,463.80 = 48,000.40 : x
  2. Step 2: Convert to fraction form
    74,438.80/111,463.80 = 48,000.40/x
  3. Step 3: Cross multiply
    74,438.80x = 111,463.80 × 48,000.40
  4. Step 4: Simplify right side
    74,438.80x = 5,350,306,985.52
  5. Step 5: Solve for x
    x = 5,350,306,985.52/74,438.80
  6. Step 6: Final answer
    x = 71,875.24

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