Home / 82,289.76-123,434.58-19,960.26

Finding the Fourth Proportional to 82,289.76, 123,434.58 and 19,960.26

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Solution

The fourth proportional to 82,289.76, 123,434.58 and 19,960.26 is: 29,940.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,289.76 : 123,434.58 = 19,960.26 : x
  2. Step 2: Convert to fraction form
    82,289.76/123,434.58 = 19,960.26/x
  3. Step 3: Cross multiply
    82,289.76x = 123,434.58 × 19,960.26
  4. Step 4: Simplify right side
    82,289.76x = 2,463,786,309.79
  5. Step 5: Solve for x
    x = 2,463,786,309.79/82,289.76
  6. Step 6: Final answer
    x = 29,940.38

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Double scale
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Similar ratio
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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.