Home / 56,321.37-84,489.41-20,807.57

Finding the Fourth Proportional to 56,321.37, 84,489.41 and 20,807.57

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Solution

The fourth proportional to 56,321.37, 84,489.41 and 20,807.57 is: 31,214.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,321.37 : 84,489.41 = 20,807.57 : x
  2. Step 2: Convert to fraction form
    56,321.37/84,489.41 = 20,807.57/x
  3. Step 3: Cross multiply
    56,321.37x = 84,489.41 × 20,807.57
  4. Step 4: Simplify right side
    56,321.37x = 1,758,018,942.41
  5. Step 5: Solve for x
    x = 1,758,018,942.41/56,321.37
  6. Step 6: Final answer
    x = 31,214.07

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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.