Home / 57,712.36-86,583.90-18,270.28

Finding the Fourth Proportional to 57,712.36, 86,583.90 and 18,270.28

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Solution

The fourth proportional to 57,712.36, 86,583.90 and 18,270.28 is: 27,410.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.36 : 86,583.90 = 18,270.28 : x
  2. Step 2: Convert to fraction form
    57,712.36/86,583.90 = 18,270.28/x
  3. Step 3: Cross multiply
    57,712.36x = 86,583.90 × 18,270.28
  4. Step 4: Simplify right side
    57,712.36x = 1,581,912,096.49
  5. Step 5: Solve for x
    x = 1,581,912,096.49/57,712.36
  6. Step 6: Final answer
    x = 27,410.28

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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.