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Finding the Fourth Proportional to 70,963.20, 106,406.40 and 29,414.40

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Solution

The fourth proportional to 70,963.20, 106,406.40 and 29,414.40 is: 44,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,963.20 : 106,406.40 = 29,414.40 : x
  2. Step 2: Convert to fraction form
    70,963.20/106,406.40 = 29,414.40/x
  3. Step 3: Cross multiply
    70,963.20x = 106,406.40 × 29,414.40
  4. Step 4: Simplify right side
    70,963.20x = 3,129,880,412.16
  5. Step 5: Solve for x
    x = 3,129,880,412.16/70,963.20
  6. Step 6: Final answer
    x = 44,105.68

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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.