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Finding the Fourth Proportional to 71,267.20, 106,900.80 and 29,708.80

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Solution

The fourth proportional to 71,267.20, 106,900.80 and 29,708.80 is: 44,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,267.20 : 106,900.80 = 29,708.80 : x
  2. Step 2: Convert to fraction form
    71,267.20/106,900.80 = 29,708.80/x
  3. Step 3: Cross multiply
    71,267.20x = 106,900.80 × 29,708.80
  4. Step 4: Simplify right side
    71,267.20x = 3,175,894,487.04
  5. Step 5: Solve for x
    x = 3,175,894,487.04/71,267.20
  6. Step 6: Final answer
    x = 44,563.20

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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.