Home / 56,137.92-84,195.36-21,076.80

Finding the Fourth Proportional to 56,137.92, 84,195.36 and 21,076.80

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Solution

The fourth proportional to 56,137.92, 84,195.36 and 21,076.80 is: 31,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,137.92 : 84,195.36 = 21,076.80 : x
  2. Step 2: Convert to fraction form
    56,137.92/84,195.36 = 21,076.80/x
  3. Step 3: Cross multiply
    56,137.92x = 84,195.36 × 21,076.80
  4. Step 4: Simplify right side
    56,137.92x = 1,774,568,763.65
  5. Step 5: Solve for x
    x = 1,774,568,763.65/56,137.92
  6. Step 6: Final answer
    x = 31,610.87

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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.