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Finding the Fourth Proportional to 71,423.02, 107,028.94 and 67,429.02

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Solution

The fourth proportional to 71,423.02, 107,028.94 and 67,429.02 is: 101,043.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,423.02 : 107,028.94 = 67,429.02 : x
  2. Step 2: Convert to fraction form
    71,423.02/107,028.94 = 67,429.02/x
  3. Step 3: Cross multiply
    71,423.02x = 107,028.94 × 67,429.02
  4. Step 4: Simplify right side
    71,423.02x = 7,216,856,535.84
  5. Step 5: Solve for x
    x = 7,216,856,535.84/71,423.02
  6. Step 6: Final answer
    x = 101,043.84

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1.5x scale

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.