Home / 57,515.10-86,265.30-42,745.56

Finding the Fourth Proportional to 57,515.10, 86,265.30 and 42,745.56

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Solution

The fourth proportional to 57,515.10, 86,265.30 and 42,745.56 is: 64,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.10 : 86,265.30 = 42,745.56 : x
  2. Step 2: Convert to fraction form
    57,515.10/86,265.30 = 42,745.56/x
  3. Step 3: Cross multiply
    57,515.10x = 86,265.30 × 42,745.56
  4. Step 4: Simplify right side
    57,515.10x = 3,687,458,557.07
  5. Step 5: Solve for x
    x = 3,687,458,557.07/57,515.10
  6. Step 6: Final answer
    x = 64,112.88

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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.