Home / 57,147.20-85,769.40-25,605.80

Finding the Fourth Proportional to 57,147.20, 85,769.40 and 25,605.80

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Solution

The fourth proportional to 57,147.20, 85,769.40 and 25,605.80 is: 38,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,147.20 : 85,769.40 = 25,605.80 : x
  2. Step 2: Convert to fraction form
    57,147.20/85,769.40 = 25,605.80/x
  3. Step 3: Cross multiply
    57,147.20x = 85,769.40 × 25,605.80
  4. Step 4: Simplify right side
    57,147.20x = 2,196,194,102.52
  5. Step 5: Solve for x
    x = 2,196,194,102.52/57,147.20
  6. Step 6: Final answer
    x = 38,430.48

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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.