Home / 71,020.89-106,535.01-67,429.52

Finding the Fourth Proportional to 71,020.89, 106,535.01 and 67,429.52

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Solution

The fourth proportional to 71,020.89, 106,535.01 and 67,429.52 is: 101,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020.89 : 106,535.01 = 67,429.52 : x
  2. Step 2: Convert to fraction form
    71,020.89/106,535.01 = 67,429.52/x
  3. Step 3: Cross multiply
    71,020.89x = 106,535.01 × 67,429.52
  4. Step 4: Simplify right side
    71,020.89x = 7,183,604,250.35
  5. Step 5: Solve for x
    x = 7,183,604,250.35/71,020.89
  6. Step 6: Final answer
    x = 101,147.76

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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.