Home / 76,960.44-115,434.90-21,560.76

Finding the Fourth Proportional to 76,960.44, 115,434.90 and 21,560.76

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Solution

The fourth proportional to 76,960.44, 115,434.90 and 21,560.76 is: 32,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960.44 : 115,434.90 = 21,560.76 : x
  2. Step 2: Convert to fraction form
    76,960.44/115,434.90 = 21,560.76/x
  3. Step 3: Cross multiply
    76,960.44x = 115,434.90 × 21,560.76
  4. Step 4: Simplify right side
    76,960.44x = 2,488,864,174.52
  5. Step 5: Solve for x
    x = 2,488,864,174.52/76,960.44
  6. Step 6: Final answer
    x = 32,339.53

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1.5x scale

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.