Home / 57,515.62-86,287.24-18,072.70

Finding the Fourth Proportional to 57,515.62, 86,287.24 and 18,072.70

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Solution

The fourth proportional to 57,515.62, 86,287.24 and 18,072.70 is: 27,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.62 : 86,287.24 = 18,072.70 : x
  2. Step 2: Convert to fraction form
    57,515.62/86,287.24 = 18,072.70/x
  3. Step 3: Cross multiply
    57,515.62x = 86,287.24 × 18,072.70
  4. Step 4: Simplify right side
    57,515.62x = 1,559,442,970.91
  5. Step 5: Solve for x
    x = 1,559,442,970.91/57,515.62
  6. Step 6: Final answer
    x = 27,113.38

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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.