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Finding the Fourth Proportional to 57,505, 86,257.50 and 15,952

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Solution

The fourth proportional to 57,505, 86,257.50 and 15,952 is: 23,928

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,505 : 86,257.50 = 15,952 : x
  2. Step 2: Convert to fraction form
    57,505/86,257.50 = 15,952/x
  3. Step 3: Cross multiply
    57,505x = 86,257.50 × 15,952
  4. Step 4: Simplify right side
    57,505x = 1,375,979,640
  5. Step 5: Solve for x
    x = 1,375,979,640/57,505
  6. Step 6: Final answer
    x = 23,928

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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.