Home / 71,020.39-106,534.25-67,429.02

Finding the Fourth Proportional to 71,020.39, 106,534.25 and 67,429.02

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Solution

The fourth proportional to 71,020.39, 106,534.25 and 67,429.02 is: 101,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020.39 : 106,534.25 = 67,429.02 : x
  2. Step 2: Convert to fraction form
    71,020.39/106,534.25 = 67,429.02/x
  3. Step 3: Cross multiply
    71,020.39x = 106,534.25 × 67,429.02
  4. Step 4: Simplify right side
    71,020.39x = 7,183,500,242.51
  5. Step 5: Solve for x
    x = 7,183,500,242.51/71,020.39
  6. Step 6: Final answer
    x = 101,147.02

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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.