Home / 70,899.05-106,310.98-20,972.27

Finding the Fourth Proportional to 70,899.05, 106,310.98 and 20,972.27

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Solution

The fourth proportional to 70,899.05, 106,310.98 and 20,972.27 is: 31,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.05 : 106,310.98 = 20,972.27 : x
  2. Step 2: Convert to fraction form
    70,899.05/106,310.98 = 20,972.27/x
  3. Step 3: Cross multiply
    70,899.05x = 106,310.98 × 20,972.27
  4. Step 4: Simplify right side
    70,899.05x = 2,229,582,270.52
  5. Step 5: Solve for x
    x = 2,229,582,270.52/70,899.05
  6. Step 6: Final answer
    x = 31,447.28

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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.