Home / 75,722.56-113,653.76-38,308.96

Finding the Fourth Proportional to 75,722.56, 113,653.76 and 38,308.96

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Solution

The fourth proportional to 75,722.56, 113,653.76 and 38,308.96 is: 57,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,722.56 : 113,653.76 = 38,308.96 : x
  2. Step 2: Convert to fraction form
    75,722.56/113,653.76 = 38,308.96/x
  3. Step 3: Cross multiply
    75,722.56x = 113,653.76 × 38,308.96
  4. Step 4: Simplify right side
    75,722.56x = 4,353,957,345.69
  5. Step 5: Solve for x
    x = 4,353,957,345.69/75,722.56
  6. Step 6: Final answer
    x = 57,498.81

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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.