Home / 57,743.64-86,622.75-18,286.65

Finding the Fourth Proportional to 57,743.64, 86,622.75 and 18,286.65

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Solution

The fourth proportional to 57,743.64, 86,622.75 and 18,286.65 is: 27,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,743.64 : 86,622.75 = 18,286.65 : x
  2. Step 2: Convert to fraction form
    57,743.64/86,622.75 = 18,286.65/x
  3. Step 3: Cross multiply
    57,743.64x = 86,622.75 × 18,286.65
  4. Step 4: Simplify right side
    57,743.64x = 1,584,039,911.29
  5. Step 5: Solve for x
    x = 1,584,039,911.29/57,743.64
  6. Step 6: Final answer
    x = 27,432.28

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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.