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Finding the Fourth Proportional to 81,510.90, 112,490.49 and 45,703.23

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Solution

The fourth proportional to 81,510.90, 112,490.49 and 45,703.23 is: 63,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,510.90 : 112,490.49 = 45,703.23 : x
  2. Step 2: Convert to fraction form
    81,510.90/112,490.49 = 45,703.23/x
  3. Step 3: Cross multiply
    81,510.90x = 112,490.49 × 45,703.23
  4. Step 4: Simplify right side
    81,510.90x = 5,141,178,737.28
  5. Step 5: Solve for x
    x = 5,141,178,737.28/81,510.90
  6. Step 6: Final answer
    x = 63,073.51

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