Home / 81,816.68-122,839.94-41,864.24

Finding the Fourth Proportional to 81,816.68, 122,839.94 and 41,864.24

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Solution

The fourth proportional to 81,816.68, 122,839.94 and 41,864.24 is: 62,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,816.68 : 122,839.94 = 41,864.24 : x
  2. Step 2: Convert to fraction form
    81,816.68/122,839.94 = 41,864.24/x
  3. Step 3: Cross multiply
    81,816.68x = 122,839.94 × 41,864.24
  4. Step 4: Simplify right side
    81,816.68x = 5,142,601,141.51
  5. Step 5: Solve for x
    x = 5,142,601,141.51/81,816.68
  6. Step 6: Final answer
    x = 62,855.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.