Home / 51,680.18-71,325.25-31,532.78

Finding the Fourth Proportional to 51,680.18, 71,325.25 and 31,532.78

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Solution

The fourth proportional to 51,680.18, 71,325.25 and 31,532.78 is: 43,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,680.18 : 71,325.25 = 31,532.78 : x
  2. Step 2: Convert to fraction form
    51,680.18/71,325.25 = 31,532.78/x
  3. Step 3: Cross multiply
    51,680.18x = 71,325.25 × 31,532.78
  4. Step 4: Simplify right side
    51,680.18x = 2,249,083,371.53
  5. Step 5: Solve for x
    x = 2,249,083,371.53/51,680.18
  6. Step 6: Final answer
    x = 43,519.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.