Home / 81,308.04-121,983.96-41,843.64

Finding the Fourth Proportional to 81,308.04, 121,983.96 and 41,843.64

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Solution

The fourth proportional to 81,308.04, 121,983.96 and 41,843.64 is: 62,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,308.04 : 121,983.96 = 41,843.64 : x
  2. Step 2: Convert to fraction form
    81,308.04/121,983.96 = 41,843.64/x
  3. Step 3: Cross multiply
    81,308.04x = 121,983.96 × 41,843.64
  4. Step 4: Simplify right side
    81,308.04x = 5,104,252,908.01
  5. Step 5: Solve for x
    x = 5,104,252,908.01/81,308.04
  6. Step 6: Final answer
    x = 62,776.73

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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.