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Finding the Fourth Proportional to 71,800.98, 107,670.17 and 21,869.34

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Solution

The fourth proportional to 71,800.98, 107,670.17 and 21,869.34 is: 32,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,800.98 : 107,670.17 = 21,869.34 : x
  2. Step 2: Convert to fraction form
    71,800.98/107,670.17 = 21,869.34/x
  3. Step 3: Cross multiply
    71,800.98x = 107,670.17 × 21,869.34
  4. Step 4: Simplify right side
    71,800.98x = 2,354,675,446.24
  5. Step 5: Solve for x
    x = 2,354,675,446.24/71,800.98
  6. Step 6: Final answer
    x = 32,794.48

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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.