Home / 57,719.20-86,586.90-18,272.20

Finding the Fourth Proportional to 57,719.20, 86,586.90 and 18,272.20

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Solution

The fourth proportional to 57,719.20, 86,586.90 and 18,272.20 is: 27,410.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,719.20 : 86,586.90 = 18,272.20 : x
  2. Step 2: Convert to fraction form
    57,719.20/86,586.90 = 18,272.20/x
  3. Step 3: Cross multiply
    57,719.20x = 86,586.90 × 18,272.20
  4. Step 4: Simplify right side
    57,719.20x = 1,582,133,154.18
  5. Step 5: Solve for x
    x = 1,582,133,154.18/57,719.20
  6. Step 6: Final answer
    x = 27,410.86

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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.