Home / 73,991.31-102,109.05-43,775.88

Finding the Fourth Proportional to 73,991.31, 102,109.05 and 43,775.88

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Solution

The fourth proportional to 73,991.31, 102,109.05 and 43,775.88 is: 60,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,991.31 : 102,109.05 = 43,775.88 : x
  2. Step 2: Convert to fraction form
    73,991.31/102,109.05 = 43,775.88/x
  3. Step 3: Cross multiply
    73,991.31x = 102,109.05 × 43,775.88
  4. Step 4: Simplify right side
    73,991.31x = 4,469,913,519.71
  5. Step 5: Solve for x
    x = 4,469,913,519.71/73,991.31
  6. Step 6: Final answer
    x = 60,411.33

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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.