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Finding the Fourth Proportional to 71,224.62, 106,858.34 and 21,306.34

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Solution

The fourth proportional to 71,224.62, 106,858.34 and 21,306.34 is: 31,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,224.62 : 106,858.34 = 21,306.34 : x
  2. Step 2: Convert to fraction form
    71,224.62/106,858.34 = 21,306.34/x
  3. Step 3: Cross multiply
    71,224.62x = 106,858.34 × 21,306.34
  4. Step 4: Simplify right side
    71,224.62x = 2,276,760,230.82
  5. Step 5: Solve for x
    x = 2,276,760,230.82/71,224.62
  6. Step 6: Final answer
    x = 31,965.92

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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.