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Finding the Fourth Proportional to 71,267.60, 106,882.20 and 21,347.60

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Solution

The fourth proportional to 71,267.60, 106,882.20 and 21,347.60 is: 32,015.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,267.60 : 106,882.20 = 21,347.60 : x
  2. Step 2: Convert to fraction form
    71,267.60/106,882.20 = 21,347.60/x
  3. Step 3: Cross multiply
    71,267.60x = 106,882.20 × 21,347.60
  4. Step 4: Simplify right side
    71,267.60x = 2,281,678,452.72
  5. Step 5: Solve for x
    x = 2,281,678,452.72/71,267.60
  6. Step 6: Final answer
    x = 32,015.65

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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.