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Finding the Fourth Proportional to 93,688.70, 129,287.14 and 53,415.43

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Solution

The fourth proportional to 93,688.70, 129,287.14 and 53,415.43 is: 73,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,688.70 : 129,287.14 = 53,415.43 : x
  2. Step 2: Convert to fraction form
    93,688.70/129,287.14 = 53,415.43/x
  3. Step 3: Cross multiply
    93,688.70x = 129,287.14 × 53,415.43
  4. Step 4: Simplify right side
    93,688.70x = 6,905,927,719.81
  5. Step 5: Solve for x
    x = 6,905,927,719.81/93,688.70
  6. Step 6: Final answer
    x = 73,711.43

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