Home / 57,635.43-86,455.80-21,620.49

Finding the Fourth Proportional to 57,635.43, 86,455.80 and 21,620.49

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Solution

The fourth proportional to 57,635.43, 86,455.80 and 21,620.49 is: 32,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,635.43 : 86,455.80 = 21,620.49 : x
  2. Step 2: Convert to fraction form
    57,635.43/86,455.80 = 21,620.49/x
  3. Step 3: Cross multiply
    57,635.43x = 86,455.80 × 21,620.49
  4. Step 4: Simplify right side
    57,635.43x = 1,869,216,759.34
  5. Step 5: Solve for x
    x = 1,869,216,759.34/57,635.43
  6. Step 6: Final answer
    x = 32,431.73

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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.