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Finding the Fourth Proportional to 70,226.48, 105,324.12 and 20,295.68

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Solution

The fourth proportional to 70,226.48, 105,324.12 and 20,295.68 is: 30,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,226.48 : 105,324.12 = 20,295.68 : x
  2. Step 2: Convert to fraction form
    70,226.48/105,324.12 = 20,295.68/x
  3. Step 3: Cross multiply
    70,226.48x = 105,324.12 × 20,295.68
  4. Step 4: Simplify right side
    70,226.48x = 2,137,624,635.80
  5. Step 5: Solve for x
    x = 2,137,624,635.80/70,226.48
  6. Step 6: Final answer
    x = 30,439.01

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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.