Home / 67,819.40-101,729.10-56,738.60

Finding the Fourth Proportional to 67,819.40, 101,729.10 and 56,738.60

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Solution

The fourth proportional to 67,819.40, 101,729.10 and 56,738.60 is: 85,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,819.40 : 101,729.10 = 56,738.60 : x
  2. Step 2: Convert to fraction form
    67,819.40/101,729.10 = 56,738.60/x
  3. Step 3: Cross multiply
    67,819.40x = 101,729.10 × 56,738.60
  4. Step 4: Simplify right side
    67,819.40x = 5,771,966,713.26
  5. Step 5: Solve for x
    x = 5,771,966,713.26/67,819.40
  6. Step 6: Final answer
    x = 85,107.90

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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.