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Finding the Fourth Proportional to 70,801.57, 106,199.88 and 20,882.44

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Solution

The fourth proportional to 70,801.57, 106,199.88 and 20,882.44 is: 31,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,801.57 : 106,199.88 = 20,882.44 : x
  2. Step 2: Convert to fraction form
    70,801.57/106,199.88 = 20,882.44/x
  3. Step 3: Cross multiply
    70,801.57x = 106,199.88 × 20,882.44
  4. Step 4: Simplify right side
    70,801.57x = 2,217,712,622.11
  5. Step 5: Solve for x
    x = 2,217,712,622.11/70,801.57
  6. Step 6: Final answer
    x = 31,322.93

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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.