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Finding the Fourth Proportional to 65,425.12, 90,281.16 and 39,593.34

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Solution

The fourth proportional to 65,425.12, 90,281.16 and 39,593.34 is: 54,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,425.12 : 90,281.16 = 39,593.34 : x
  2. Step 2: Convert to fraction form
    65,425.12/90,281.16 = 39,593.34/x
  3. Step 3: Cross multiply
    65,425.12x = 90,281.16 × 39,593.34
  4. Step 4: Simplify right side
    65,425.12x = 3,574,532,663.47
  5. Step 5: Solve for x
    x = 3,574,532,663.47/65,425.12
  6. Step 6: Final answer
    x = 54,635.48

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