Home / 71,018.20-106,519.43-25,424.09

Finding the Fourth Proportional to 71,018.20, 106,519.43 and 25,424.09

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Solution

The fourth proportional to 71,018.20, 106,519.43 and 25,424.09 is: 38,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.20 : 106,519.43 = 25,424.09 : x
  2. Step 2: Convert to fraction form
    71,018.20/106,519.43 = 25,424.09/x
  3. Step 3: Cross multiply
    71,018.20x = 106,519.43 × 25,424.09
  4. Step 4: Simplify right side
    71,018.20x = 2,708,159,106.03
  5. Step 5: Solve for x
    x = 2,708,159,106.03/71,018.20
  6. Step 6: Final answer
    x = 38,133.31

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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.