Home / 76,378.28-114,489.24-32,030.72

Finding the Fourth Proportional to 76,378.28, 114,489.24 and 32,030.72

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Solution

The fourth proportional to 76,378.28, 114,489.24 and 32,030.72 is: 48,013.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,378.28 : 114,489.24 = 32,030.72 : x
  2. Step 2: Convert to fraction form
    76,378.28/114,489.24 = 32,030.72/x
  3. Step 3: Cross multiply
    76,378.28x = 114,489.24 × 32,030.72
  4. Step 4: Simplify right side
    76,378.28x = 3,667,172,789.45
  5. Step 5: Solve for x
    x = 3,667,172,789.45/76,378.28
  6. Step 6: Final answer
    x = 48,013.29

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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.