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Finding the Fourth Proportional to 70,799.05, 97,689.20 and 45,285.87

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Solution

The fourth proportional to 70,799.05, 97,689.20 and 45,285.87 is: 62,485.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,799.05 : 97,689.20 = 45,285.87 : x
  2. Step 2: Convert to fraction form
    70,799.05/97,689.20 = 45,285.87/x
  3. Step 3: Cross multiply
    70,799.05x = 97,689.20 × 45,285.87
  4. Step 4: Simplify right side
    70,799.05x = 4,423,940,411.60
  5. Step 5: Solve for x
    x = 4,423,940,411.60/70,799.05
  6. Step 6: Final answer
    x = 62,485.87

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