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Finding the Fourth Proportional to 57,170.16, 85,763.54 and 17,730.45

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Solution

The fourth proportional to 57,170.16, 85,763.54 and 17,730.45 is: 26,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170.16 : 85,763.54 = 17,730.45 : x
  2. Step 2: Convert to fraction form
    57,170.16/85,763.54 = 17,730.45/x
  3. Step 3: Cross multiply
    57,170.16x = 85,763.54 × 17,730.45
  4. Step 4: Simplify right side
    57,170.16x = 1,520,626,157.79
  5. Step 5: Solve for x
    x = 1,520,626,157.79/57,170.16
  6. Step 6: Final answer
    x = 26,598.25

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