Home / 81,048.81-111,843.68-45,238.04

Finding the Fourth Proportional to 81,048.81, 111,843.68 and 45,238.04

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Solution

The fourth proportional to 81,048.81, 111,843.68 and 45,238.04 is: 62,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,048.81 : 111,843.68 = 45,238.04 : x
  2. Step 2: Convert to fraction form
    81,048.81/111,843.68 = 45,238.04/x
  3. Step 3: Cross multiply
    81,048.81x = 111,843.68 × 45,238.04
  4. Step 4: Simplify right side
    81,048.81x = 5,059,588,084.18
  5. Step 5: Solve for x
    x = 5,059,588,084.18/81,048.81
  6. Step 6: Final answer
    x = 62,426.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.