Home / 57,231.78-85,868-25,639.36

Finding the Fourth Proportional to 57,231.78, 85,868 and 25,639.36

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Solution

The fourth proportional to 57,231.78, 85,868 and 25,639.36 is: 38,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.78 : 85,868 = 25,639.36 : x
  2. Step 2: Convert to fraction form
    57,231.78/85,868 = 25,639.36/x
  3. Step 3: Cross multiply
    57,231.78x = 85,868 × 25,639.36
  4. Step 4: Simplify right side
    57,231.78x = 2,201,600,564.48
  5. Step 5: Solve for x
    x = 2,201,600,564.48/57,231.78
  6. Step 6: Final answer
    x = 38,468.15

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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.