Home / 47,138.22-70,692.30-15,542.40

Finding the Fourth Proportional to 47,138.22, 70,692.30 and 15,542.40

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Solution

The fourth proportional to 47,138.22, 70,692.30 and 15,542.40 is: 23,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.22 : 70,692.30 = 15,542.40 : x
  2. Step 2: Convert to fraction form
    47,138.22/70,692.30 = 15,542.40/x
  3. Step 3: Cross multiply
    47,138.22x = 70,692.30 × 15,542.40
  4. Step 4: Simplify right side
    47,138.22x = 1,098,728,003.52
  5. Step 5: Solve for x
    x = 1,098,728,003.52/47,138.22
  6. Step 6: Final answer
    x = 23,308.64

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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.