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Finding the Fourth Proportional to 47,789.22, 71,325.78 and 47,000.89

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Solution

The fourth proportional to 47,789.22, 71,325.78 and 47,000.89 is: 70,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,789.22 : 71,325.78 = 47,000.89 : x
  2. Step 2: Convert to fraction form
    47,789.22/71,325.78 = 47,000.89/x
  3. Step 3: Cross multiply
    47,789.22x = 71,325.78 × 47,000.89
  4. Step 4: Simplify right side
    47,789.22x = 3,352,375,139.94
  5. Step 5: Solve for x
    x = 3,352,375,139.94/47,789.22
  6. Step 6: Final answer
    x = 70,149.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.