Home / 71,122.74-106,704.12-31,145.28

Finding the Fourth Proportional to 71,122.74, 106,704.12 and 31,145.28

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Solution

The fourth proportional to 71,122.74, 106,704.12 and 31,145.28 is: 46,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,122.74 : 106,704.12 = 31,145.28 : x
  2. Step 2: Convert to fraction form
    71,122.74/106,704.12 = 31,145.28/x
  3. Step 3: Cross multiply
    71,122.74x = 106,704.12 × 31,145.28
  4. Step 4: Simplify right side
    71,122.74x = 3,323,329,694.55
  5. Step 5: Solve for x
    x = 3,323,329,694.55/71,122.74
  6. Step 6: Final answer
    x = 46,726.68

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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.