Home / 75,769.18-113,723.79-38,355.51

Finding the Fourth Proportional to 75,769.18, 113,723.79 and 38,355.51

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Solution

The fourth proportional to 75,769.18, 113,723.79 and 38,355.51 is: 57,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,769.18 : 113,723.79 = 38,355.51 : x
  2. Step 2: Convert to fraction form
    75,769.18/113,723.79 = 38,355.51/x
  3. Step 3: Cross multiply
    75,769.18x = 113,723.79 × 38,355.51
  4. Step 4: Simplify right side
    75,769.18x = 4,361,933,964.58
  5. Step 5: Solve for x
    x = 4,361,933,964.58/75,769.18
  6. Step 6: Final answer
    x = 57,568.71

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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.