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Finding the Fourth Proportional to 56,931.80, 85,397.70 and 44,490.20

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Solution

The fourth proportional to 56,931.80, 85,397.70 and 44,490.20 is: 66,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,931.80 : 85,397.70 = 44,490.20 : x
  2. Step 2: Convert to fraction form
    56,931.80/85,397.70 = 44,490.20/x
  3. Step 3: Cross multiply
    56,931.80x = 85,397.70 × 44,490.20
  4. Step 4: Simplify right side
    56,931.80x = 3,799,360,752.54
  5. Step 5: Solve for x
    x = 3,799,360,752.54/56,931.80
  6. Step 6: Final answer
    x = 66,735.30

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