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Finding the Fourth Proportional to 93,011.76, 128,142.36 and 64,303.92

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Solution

The fourth proportional to 93,011.76, 128,142.36 and 64,303.92 is: 88,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,011.76 : 128,142.36 = 64,303.92 : x
  2. Step 2: Convert to fraction form
    93,011.76/128,142.36 = 64,303.92/x
  3. Step 3: Cross multiply
    93,011.76x = 128,142.36 × 64,303.92
  4. Step 4: Simplify right side
    93,011.76x = 8,240,056,066.05
  5. Step 5: Solve for x
    x = 8,240,056,066.05/93,011.76
  6. Step 6: Final answer
    x = 88,591.55

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