Home / 70,991.12-106,527.38-28,863.42

Finding the Fourth Proportional to 70,991.12, 106,527.38 and 28,863.42

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Solution

The fourth proportional to 70,991.12, 106,527.38 and 28,863.42 is: 43,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,991.12 : 106,527.38 = 28,863.42 : x
  2. Step 2: Convert to fraction form
    70,991.12/106,527.38 = 28,863.42/x
  3. Step 3: Cross multiply
    70,991.12x = 106,527.38 × 28,863.42
  4. Step 4: Simplify right side
    70,991.12x = 3,074,744,366.12
  5. Step 5: Solve for x
    x = 3,074,744,366.12/70,991.12
  6. Step 6: Final answer
    x = 43,311.68

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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.