Home / 51,865.67-77,781.17-20,267.57

Finding the Fourth Proportional to 51,865.67, 77,781.17 and 20,267.57

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Solution

The fourth proportional to 51,865.67, 77,781.17 and 20,267.57 is: 30,394.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,865.67 : 77,781.17 = 20,267.57 : x
  2. Step 2: Convert to fraction form
    51,865.67/77,781.17 = 20,267.57/x
  3. Step 3: Cross multiply
    51,865.67x = 77,781.17 × 20,267.57
  4. Step 4: Simplify right side
    51,865.67x = 1,576,434,817.41
  5. Step 5: Solve for x
    x = 1,576,434,817.41/51,865.67
  6. Step 6: Final answer
    x = 30,394.57

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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.