Home / 81,935.04-122,975.82-41,981.28

Finding the Fourth Proportional to 81,935.04, 122,975.82 and 41,981.28

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Solution

The fourth proportional to 81,935.04, 122,975.82 and 41,981.28 is: 63,009.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.04 : 122,975.82 = 41,981.28 : x
  2. Step 2: Convert to fraction form
    81,935.04/122,975.82 = 41,981.28/x
  3. Step 3: Cross multiply
    81,935.04x = 122,975.82 × 41,981.28
  4. Step 4: Simplify right side
    81,935.04x = 5,162,682,332.65
  5. Step 5: Solve for x
    x = 5,162,682,332.65/81,935.04
  6. Step 6: Final answer
    x = 63,009.46

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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.