Home / 57,701.20-86,576.10-28,103.80

Finding the Fourth Proportional to 57,701.20, 86,576.10 and 28,103.80

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Solution

The fourth proportional to 57,701.20, 86,576.10 and 28,103.80 is: 42,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,701.20 : 86,576.10 = 28,103.80 : x
  2. Step 2: Convert to fraction form
    57,701.20/86,576.10 = 28,103.80/x
  3. Step 3: Cross multiply
    57,701.20x = 86,576.10 × 28,103.80
  4. Step 4: Simplify right side
    57,701.20x = 2,433,117,399.18
  5. Step 5: Solve for x
    x = 2,433,117,399.18/57,701.20
  6. Step 6: Final answer
    x = 42,167.54

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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.