Home / 57,720.22-86,593.32-20,282.88

Finding the Fourth Proportional to 57,720.22, 86,593.32 and 20,282.88

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Solution

The fourth proportional to 57,720.22, 86,593.32 and 20,282.88 is: 30,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.22 : 86,593.32 = 20,282.88 : x
  2. Step 2: Convert to fraction form
    57,720.22/86,593.32 = 20,282.88/x
  3. Step 3: Cross multiply
    57,720.22x = 86,593.32 × 20,282.88
  4. Step 4: Simplify right side
    57,720.22x = 1,756,361,918.36
  5. Step 5: Solve for x
    x = 1,756,361,918.36/57,720.22
  6. Step 6: Final answer
    x = 30,428.88

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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.