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Finding the Fourth Proportional to 92,921.68, 139,304.70 and 64,759.12

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Solution

The fourth proportional to 92,921.68, 139,304.70 and 64,759.12 is: 97,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.68 : 139,304.70 = 64,759.12 : x
  2. Step 2: Convert to fraction form
    92,921.68/139,304.70 = 64,759.12/x
  3. Step 3: Cross multiply
    92,921.68x = 139,304.70 × 64,759.12
  4. Step 4: Simplify right side
    92,921.68x = 9,021,249,783.86
  5. Step 5: Solve for x
    x = 9,021,249,783.86/92,921.68
  6. Step 6: Final answer
    x = 97,084.45

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