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Finding the Fourth Proportional to 93,428.20, 140,142.30 and 51,437.80

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Solution

The fourth proportional to 93,428.20, 140,142.30 and 51,437.80 is: 77,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,428.20 : 140,142.30 = 51,437.80 : x
  2. Step 2: Convert to fraction form
    93,428.20/140,142.30 = 51,437.80/x
  3. Step 3: Cross multiply
    93,428.20x = 140,142.30 × 51,437.80
  4. Step 4: Simplify right side
    93,428.20x = 7,208,611,598.94
  5. Step 5: Solve for x
    x = 7,208,611,598.94/93,428.20
  6. Step 6: Final answer
    x = 77,156.70

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