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Finding the Fourth Proportional to 67,819.78, 101,729.64 and 26,266.78

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Solution

The fourth proportional to 67,819.78, 101,729.64 and 26,266.78 is: 39,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,819.78 : 101,729.64 = 26,266.78 : x
  2. Step 2: Convert to fraction form
    67,819.78/101,729.64 = 26,266.78/x
  3. Step 3: Cross multiply
    67,819.78x = 101,729.64 × 26,266.78
  4. Step 4: Simplify right side
    67,819.78x = 2,672,110,073.36
  5. Step 5: Solve for x
    x = 2,672,110,073.36/67,819.78
  6. Step 6: Final answer
    x = 39,400.16

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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.